{"title":"Round-bottom flasks","description":"\u003cstyle\u003e\n.lx-sub div[title]:hover img, .lx-sub img[src*=\"\/cdn\/shop\/files\/\"]:hover { filter: none !important; opacity: 1 !important; }\n\u003c\/style\u003e\n\u003cdiv class=\"lx-sub\" style=\"text-align: left;\"\u003e\n\u003ch2 style=\"font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; color: #0e1a22; margin: 0 0 0.65em;\"\u003eBuy Round-bottom flasks online\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.0625rem; line-height: 1.6; color: #0e1a22; margin: 0 0 1.1em;\"\u003eThe Round-bottom flasks shelf sits in Beakers \u0026amp; flasks. Luminix Health supplies this range from a catalogue of 150.000 laboratory articles for hospitals, universities, pharma and industrial laboratories.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 2.6em;\"\u003e\u003ca href=\"\/en-be\/pages\/get-a-quote\" style=\"display: inline-block; background: linear-gradient(135deg, #0a3d7a, #0e6b8f 48%, #14a0b0); color: #ffffff; font-size: 14px; font-weight: 600; letter-spacing: 0.01em; line-height: 50px; padding: 0 26px; border-radius: 999px; text-decoration: none; box-shadow: 0 8px 20px rgba(10, 61, 122, 0.22);\"\u003eGet your quote\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; color: #0e1a22; margin: 0 0 0.65em;\"\u003eBrowse our Round-bottom flasks\u003c\/h2\u003e\n\u003cp style=\"margin: 0.95em 0 0.35em; font-size: 15px; font-weight: 600; color: #0e1a22;\"\u003eRound-bottom flasks\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 0.2em; line-height: 1;\"\u003e\u003ca href=\"\/en-be\/collections\/beakers\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eBeakers\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/erlenmeyer-flasks\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eErlenmeyer flasks\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/reaction-vessels-and-jacketed-vessels\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eReaction vessels \u0026amp; jacketed vessels\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eFlat-bottom flasks\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/flasks\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eFlasks (other)\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/beaker-and-flask-accessories\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eBeaker \u0026amp; flask accessories\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0.95em 0 0.35em; font-size: 15px; font-weight: 600; color: #0e1a22;\"\u003eBeakers \u0026amp; flasks\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 0.2em; line-height: 1;\"\u003e\u003ca href=\"\/en-be\/collections\/beakers-and-flasks\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0.95em 0 0.35em; font-size: 15px; font-weight: 600; color: #0e1a22;\"\u003eMain catalogues\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 1.4em; line-height: 1;\"\u003e\u003ca href=\"\/en-be\/collections\/labware\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eLabware\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/instruments\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eInstruments\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/chemicals\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eChemicals\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/consumables\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eConsumables\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/chromatography\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eChromatography\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/microbiological-media\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eLife Science \u0026amp; Microbiology\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/safety\" style=\"display: inline-block; margin: 0 6px 8px 0; padding: 8px 14px; border-radius: 999px; background: #e8f6f8; color: #0c5f70; font-size: 14px; font-weight: 600; line-height: 1.3; text-decoration: none;\"\u003eSafety\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.65; color: #3d4a4e; margin: 0 0 1.2em;\"\u003eNot sure which article fits the bench? Tell us the application and the pack size. Our specialists help you find it, including a personal quote for the order.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; color: #0e1a22; margin: 0 0 0.65em;\"\u003eOur brands of Round-bottom flasks\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 2.6em;\"\u003e\n\u003cdiv title=\"Labbox\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/en-be\/collections\/vendors?q=Labbox\" aria-label=\"Labbox\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/brand-labbox_400x.png\" alt=\"Labbox\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv title=\"DWK Life Sciences\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/en-be\/collections\/vendors?q=DWK%20Life%20Sciences\" aria-label=\"DWK Life Sciences\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/dwk-logo_f55447f1-988e-4567-91c3-a20155af7e7b.png?v=1774973241\u0026amp;amp;width=400\" alt=\"DWK Life Sciences\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv title=\"Carl Roth\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/en-be\/collections\/vendors?q=Carl%20Roth\" aria-label=\"Carl Roth\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/Carl_Roth_Logo_svg_05e522c2-17d7-41b2-8ebd-4dcb9aa179d0.png?v=1774973256\u0026amp;amp;width=400\" alt=\"Carl Roth\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv title=\"IKA\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/en-be\/collections\/vendors?q=IKA\" aria-label=\"IKA\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/IKA_Logo_3f351242-da36-48f9-a83e-a8eef18fb773.jpg?v=1774973266\u0026amp;amp;width=400\" alt=\"IKA\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv title=\"Heidolph\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/en-be\/collections\/vendors?q=Heidolph\" aria-label=\"Heidolph\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/Heidolph_logo_0d543c5e-5399-4e0a-9c9b-885abb89f2ab.jpg?v=1774973271\u0026amp;amp;width=400\" alt=\"Heidolph\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv title=\"Eppendorf\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/en-be\/collections\/vendors?q=Eppendorf\" aria-label=\"Eppendorf\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/Eppendorf-Logo_svg_7df43327-1adc-4933-8f88-bf8198de4671.png?v=1774973250\u0026amp;amp;width=400\" alt=\"Eppendorf\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv title=\"Macherey-Nagel\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/en-be\/collections\/vendors?q=Macherey-Nagel\" aria-label=\"Macherey-Nagel\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/macherey-nagel-small_d4cd4891-4386-48b2-8d3e-409bee797ef9.png?v=1774973327\u0026amp;amp;width=400\" alt=\"Macherey-Nagel\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv title=\"BRAND\" style=\"flex: 1 1 calc(25% - 8px); min-width: 150px; max-width: calc(50% - 5px); box-sizing: border-box; display: flex; align-items: center; justify-content: center; height: 88px; padding: 14px 20px; background: #ffffff; border: 1px solid #e2e8e6; border-radius: 12px;\"\u003e\u003ca class=\"lx-brand-tile\" href=\"\/en-be\/collections\/vendors?q=BRAND\" aria-label=\"BRAND\"\u003e\u003cimg src=\"https:\/\/www.luminixhealth.com\/cdn\/shop\/files\/Logo_170a6caa-7d71-4108-bd5f-0c9717d05e6b.png?v=1774973292\u0026amp;amp;width=400\" alt=\"BRAND\" loading=\"lazy\" style=\"display: block; max-width: 100%; max-height: 54px; width: auto; height: auto; margin: 0; filter: grayscale(100%); opacity: 0.7; transition: filter 0.2s ease, opacity 0.2s ease;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: linear-gradient(135deg, #0a3d7a, #0e6b8f 48%, #14a0b0); border-radius: 20px; padding: 30px 28px 32px; margin: 0; box-shadow: 0 8px 20px rgba(10, 61, 122, 0.22);\"\u003e\n\u003ch2 style=\"font-size: 1.35rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.3; color: #ffffff; margin: 0 0 0.6em;\"\u003eLuminix Health, your European distributor for Round-bottom flasks\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 0.8em; font-size: 16px; line-height: 1.6; color: #ffffff;\"\u003eOrder Round-bottom flasks from Luminix Health and count on:\u003c\/p\u003e\n\u003cul style=\"list-style: none; margin: 0 0 1.3em; padding: 0; font-size: 15px; line-height: 1.55; color: #ffffff;\"\u003e\n\u003cli style=\"display: flex; align-items: flex-start; margin: 0 0 0.45em; color: #ffffff;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; display: inline-block; width: 20px; height: 20px; line-height: 20px; border-radius: 50%; background: #ffffff; color: #0e6b8f; font-size: 12px; font-weight: bold; text-align: center; margin: 2px 10px 0 0;\"\u003e✓\u003c\/span\u003e\u003cspan\u003ePersonal contact and professional advice\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"display: flex; align-items: flex-start; margin: 0 0 0.45em; color: #ffffff;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; display: inline-block; width: 20px; height: 20px; line-height: 20px; border-radius: 50%; background: #ffffff; color: #0e6b8f; font-size: 12px; font-weight: bold; text-align: center; margin: 2px 10px 0 0;\"\u003e✓\u003c\/span\u003e\u003cspan\u003eFast answers and shipping from the heart of Europe, delivery across the EU, two to five days if in stock\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"display: flex; align-items: flex-start; margin: 0 0 0.45em; color: #ffffff;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; display: inline-block; width: 20px; height: 20px; line-height: 20px; border-radius: 50%; background: #ffffff; color: #0e6b8f; font-size: 12px; font-weight: bold; text-align: center; margin: 2px 10px 0 0;\"\u003e✓\u003c\/span\u003e\u003cspan\u003eCompetitive prices and a 24\/7 online range\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"display: flex; align-items: flex-start; margin: 0; color: #ffffff;\"\u003e\n\u003cspan style=\"flex: 0 0 auto; display: inline-block; width: 20px; height: 20px; line-height: 20px; border-radius: 50%; background: #ffffff; color: #0e6b8f; font-size: 12px; font-weight: bold; text-align: center; margin: 2px 10px 0 0;\"\u003e✓\u003c\/span\u003e\u003cspan\u003eA complete assortment of laboratory equipment and supplies\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 1.1em; font-size: 16px; line-height: 1.6; color: #ffffff;\"\u003e\u003cstrong\u003eGet in touch for a quote tailored to your laboratory's needs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"\/en-be\/pages\/get-a-quote\" style=\"display: inline-block; background: #ffffff; color: #0a3d7a; font-size: 14px; font-weight: 600; letter-spacing: 0.01em; line-height: 50px; padding: 0 26px; border-radius: 999px; text-decoration: none;\"\u003eRequest your quote\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"ria-tubes-round-bottom-1e8h-1e8h","title":"RIA tubes, round bottom, 4 ml, PS, 11 x 70 mm, 1000 unit(s)","description":"\u003cp\u003eRIA tubes with round bottom are single-use laboratory sample tubes made from polystyrene (PS) for routine handling of liquid specimens. Each tube has a nominal volume of 4 ml and external dimensions of 11 x 70 mm, giving a compact format suited to racks, centrifuges and benchtop workflows that accept this geometry. The round-bottom profile supports mixing, sedimentation and general sample presentation in radioimmunoassay-style and related analytical procedures. Packaged as 1000 units, the set is practical for high-throughput laboratories that need a steady supply of consistent PS tubes. These consumables from manufacturer Ratiolab are intended for general laboratory use as sample and test tubes. Please note that the article is without CE\/IVD marking in future, so suitability for regulated diagnostic claims should be assessed against local requirements. Clear dimensional and material data help match the tubes to existing holders, lids and process SOPs in research, quality control and teaching laboratories.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1000 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: RIA tubes, round bottom\u003c\/li\u003e\n\u003cli\u003eVolume: 4 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: PS\u003c\/li\u003e\n\u003cli\u003eDimensions: 11 x 70 mm\u003c\/li\u003e\n\u003cli\u003eBottom shape: round bottom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ratiolab","offers":[{"title":"1000 pc(s) \/ 1 piece","offer_id":56124353249612,"sku":"1E8H.1","price":30.15,"currency_code":"EUR","in_stock":true},{"title":"1000 pc(s) \/ 6+ pieces","offer_id":56124353282380,"sku":"1E8H.1","price":28.64,"currency_code":"EUR","in_stock":true},{"title":"1000 pc(s) \/ 24+ pieces","offer_id":56124353315148,"sku":"1E8H.1","price":27.14,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1E8H-1-01-1000Wx1000H_940043ea-407d-44da-a64a-f0bd0a399ebc.jpg?v=1766402400"},{"product_id":"multi-neck-hplc-bottle-1000-ml-1hk0-1hk0","title":"Multi-neck HPLC bottle 1000 ml, DURAN® GL 45, square, four side necks, 1 pc","description":"\u003cp\u003eMulti-neck HPLC bottle 1000 ml is a DURAN® GL 45 laboratory glass vessel built for HPLC solvent supply and multi-line fluid handling. The square body carries four side necks, so several inlet and outlet tubes can be fitted at once without improvised manifolds or crowded single-neck adapters. This geometry suits continuous mobile-phase delivery, sparging lines and waste return on analytical or preparative systems. Offered as one piece with a mass of 0,875 kg, the bottle keeps a stable footprint on the bench or in instrument compartments while the 1000 ml working volume supports typical daily solvent demand. The standardised GL 45 thread accepts common caps, filters and tubing adapters used in chromatography. Produced in DURAN® glass from manufacturer DWK Life Sciences, the bottle combines chemical resistance with clear visibility of fill level and solvent condition. It integrates readily into organised HPLC workflows where reliable multi-port reservoirs improve safety, reduce spill risk and simplify solvent changeover in routine laboratory practice.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Multi-neck HPLC bottle\u003c\/li\u003e\n\u003cli\u003eCapacity: 1000 ml\u003c\/li\u003e\n\u003cli\u003eDesign: Square, four side necks\u003c\/li\u003e\n\u003cli\u003eThread: DURAN® GL 45\u003c\/li\u003e\n\u003cli\u003eWeight: 0,875 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56124454502732,"sku":"1HK0.1","price":368.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56124454535500,"sku":"1HK0.1","price":349.6,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56124454568268,"sku":"1HK0.1","price":331.2,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1HK0-1-01-1000Wx1000H_95e89f44-6a5b-4fbd-94d3-294b4e684238.jpg?v=1766402732"},{"product_id":"multi-neck-hplc-bottle-2000-ml-1hk1-1hk1","title":"Multi-neck HPLC bottle 2000 ml, DURAN® GL 45, round, one side neck, 1 pc","description":"\u003cp\u003eMulti-neck HPLC bottle 2000 ml is a DURAN® GL 45 laboratory glass bottle intended for HPLC mobile-phase storage and controlled solvent transfer. The round body is fitted with one side neck in addition to the main opening, allowing a dedicated secondary line for sparging, recirculation or return while the primary neck remains free for the main feed. This arrangement supports cleaner tubing layouts on analytical and preparative systems that run larger solvent volumes. Supplied as a single unit weighing 0,950 kg, the 2000 ml capacity extends unattended run times and reduces the frequency of reservoir changes. The GL 45 thread matches standard HPLC caps, inlet filters and adapter sets used across chromatography benches. Made from DURAN® glass by manufacturer DWK Life Sciences, the bottle offers chemical durability and easy visual inspection of solvent level and clarity. It is well suited to organised HPLC workstations where a robust multi-neck reservoir improves handling safety and keeps solvent pathways clearly separated.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Multi-neck HPLC bottle\u003c\/li\u003e\n\u003cli\u003eCapacity: 2000 ml\u003c\/li\u003e\n\u003cli\u003eDesign: Round, one side neck\u003c\/li\u003e\n\u003cli\u003eThread: DURAN® GL 45\u003c\/li\u003e\n\u003cli\u003eWeight: 0,950 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56124454601036,"sku":"1HK1.1","price":102.2,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56124454633804,"sku":"1HK1.1","price":97.09,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56124454666572,"sku":"1HK1.1","price":91.98,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1HK1-1-01-1000Wx1000H_dbd01c2b-1985-4c56-8171-8577f44ada10.jpg?v=1766402735"},{"product_id":"ff-round-bottom-flask-duran-dn-sub-100-sub-1yxc-1yxc","title":"FF round bottom flask, DURAN®, DN100,, with groove, 2000 ml, 1 pc","description":"\u003cp\u003eFlat flange round bottom flask, DURAN®, DN100, with groove is a 2000 ml laboratory flask combining a round-bottom body with a DN100 flat flange for sealed reaction and distillation assemblies. The grooved flange supports dependable gasket seating and clamp fixation, making the vessel suitable for synthesis, reflux and extraction workflows that require a wide, standardised connection. Fabricated from DURAN® glass by DWK Life Sciences, the flask integrates readily into flat-flange glassware trains used in organic and preparative laboratories. Supplied as one piece and weighing 1,075 kg, it is practical for bench or stand use where moderate capacity and mechanical stability are needed. Application areas include laboratory glass vessels, glass components for distillation and extraction, and dedicated flat-flange systems. The round-bottom geometry promotes efficient mixing and heat transfer when paired with appropriate heating mantles or baths, while the DN100 interface maintains compatibility with matching DURAN® lids and accessories.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Flat flange round bottom flask\u003c\/li\u003e\n\u003cli\u003eBrand: DURAN®\u003c\/li\u003e\n\u003cli\u003eNominal diameter: DN100\u003c\/li\u003e\n\u003cli\u003eCapacity: 2000 ml\u003c\/li\u003e\n\u003cli\u003eFlange design: With groove\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56127530959180,"sku":"1YXC.1","price":211.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56127530991948,"sku":"1YXC.1","price":200.45,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56127531024716,"sku":"1YXC.1","price":189.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1YXC-1-1000Wx1000H_65522de1-9b18-4411-89f7-d9d58521baec.jpg?v=1766408493"},{"product_id":"ff-round-bottom-flask-duran-dn-sub-100-sub-1yxe-1yxe","title":"FF round bottom flask, DURAN®, DN100,, with groove, 4000 ml, 1 pc","description":"\u003cp\u003eFlat flange round bottom flask, DURAN®, DN100, with groove provides a 4000 ml working volume in a round-bottom format equipped with a grooved DN100 flat flange. This configuration is intended for laboratory reactions, distillations and extractions that demand a secure, wide-mouth flange connection for lids, stirrers or condensers. Made from DURAN® glass from manufacturer DWK Life Sciences, the flask is designed for preparative and process-oriented work within standard flat-flange assemblies. The unit is supplied as one piece, weighs 1,520 kg and fits typical stand or support systems used in research laboratories. It falls under laboratory glassware and glass components for distillation and extraction, specifically the flat-flange vessel category. Round-bottom geometry aids uniform heating and mixing, while the grooved DN100 flange ensures consistent sealing with compatible gaskets and clamps. The flask offers a straightforward, chemically resistant vessel for multi-step synthetic and isolation procedures alongside matching DURAN® accessories.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Flat flange round bottom flask\u003c\/li\u003e\n\u003cli\u003eBrand: DURAN®\u003c\/li\u003e\n\u003cli\u003eNominal diameter: DN100\u003c\/li\u003e\n\u003cli\u003eCapacity: 4000 ml\u003c\/li\u003e\n\u003cli\u003eFlange design: With groove\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56127531057484,"sku":"1YXE.1","price":305.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56127531090252,"sku":"1YXE.1","price":289.75,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56127531123020,"sku":"1YXE.1","price":274.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1YXE-1-1000Wx1000H_6c43588f-abe2-4cea-bbad-027d7301ca21.jpg?v=1766408494"},{"product_id":"ff-round-bottom-flask-duran-dn-sub-100-sub-1yxh-1yxh","title":"FF round bottom flask, DURAN®, DN100,, with groove, 6000 ml, 1 pc","description":"\u003cp\u003eFF round bottom flask, DURAN®, DN100 is a flat-flange laboratory vessel with groove, offered in a 6000 ml working volume for distillation, extraction, and related glass process setups. The DN100 flat flange interface supports secure coupling to compatible lids, adapters, and accessories in modular flat-flange systems, while the round-bottom profile promotes uniform heating and mixing in oil baths, heating mantles, or other controlled thermal environments. Supplied as 1 unit, this flask suits preparative work where multi-litre capacity and robust flange geometry are required. The DURAN® glassware line from manufacturer DWK Life Sciences is widely specified for laboratory glass components used in distillation and extraction trains. Categories of use include laboratory glass vessels, glass components for distillation and extraction, and flat-flange vessels. The grooved flange design aids alignment and sealing with matching flat-flange hardware, helping laboratories build stable multi-neck or single-opening assemblies around a 6000 ml round-bottom body. Choose this FF round bottom flask when a DN100 flat-flange connection and six-litre capacity are needed for scale-up, solvent work-up, or continuous laboratory operations that rely on interchangeable flange glassware.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: FF round bottom flask\u003c\/li\u003e\n\u003cli\u003eGlass line: DURAN®\u003c\/li\u003e\n\u003cli\u003eFlange size: DN100\u003c\/li\u003e\n\u003cli\u003eDesign: With groove\u003c\/li\u003e\n\u003cli\u003eCapacity: 6000 ml\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56127531155788,"sku":"1YXH.1","price":349.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56127531188556,"sku":"1YXH.1","price":331.55,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56127531221324,"sku":"1YXH.1","price":314.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1YXH-1-1000Wx1000H_98b79648-8897-4531-8882-b8b15afb1af3.jpg?v=1766408494"},{"product_id":"ff-round-bottom-flask-duran-dn-sub-100-sub-1yxk-1yxk","title":"FF round bottom flask, DURAN®, DN100,, with groove, 10,000 ml, 1 pc","description":"\u003cp\u003eFF round bottom flask, DURAN®, DN100 is a flat-flange round-bottom vessel with groove, provided at 10 000 ml capacity for larger-scale laboratory distillation, extraction, and process-glass applications. The DN100 flange enables standardized connection to lids, stirrer guides, condensers, and other flat-flange accessories, while the round bottom supports even heat distribution during prolonged heating or reflux. Delivered as a single unit, the flask addresses preparative and pilot-scale tasks that exceed typical multi-litre glassware. DURAN® components from manufacturer DWK Life Sciences are established in laboratory glass, vessels, and consumables portfolios focused on distillation and extraction. The grooved flat-flange geometry assists seating and sealing against matching DN100 counterparts, which is important when building stable assemblies for solvent recovery, concentration, or multi-step work-ups. Use cases fall under glass components for distillation and extraction as well as flat-flange vessels in general labware. Specify this 10 000 ml FF round bottom flask wherever a DN100 interface, grooved flange, and ten-litre working volume are required to expand capacity within an existing flat-flange glass system without changing the connection standard.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: FF round bottom flask\u003c\/li\u003e\n\u003cli\u003eGlass line: DURAN®\u003c\/li\u003e\n\u003cli\u003eFlange size: DN100\u003c\/li\u003e\n\u003cli\u003eDesign: With groove\u003c\/li\u003e\n\u003cli\u003eCapacity: 10 000 ml\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56127531286860,"sku":"1YXK.1","price":501.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56127531319628,"sku":"1YXK.1","price":475.95,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56127531352396,"sku":"1YXK.1","price":450.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1YXK-1-1000Wx1000H_63b68f61-786e-44a2-a3e1-f47147fd897c.jpg?v=1766408495"},{"product_id":"ff-round-bottom-flask-duran-dn-sub-100-sub-1yxl-1yxl","title":"FF round bottom flask, DURAN®, DN100,, with groove, 20,000 ml, 1 pc","description":"\u003cp\u003eFF round bottom flask, DURAN®, DN100 is a large flat-flange round-bottom flask with groove, supplied at 20 000 ml for high-volume laboratory distillation, extraction, and related process work. The DN100 flat flange provides a consistent mechanical interface to compatible lids and accessories, allowing laboratories to scale batch size while retaining the same connection standard used on smaller FF vessels. The round-bottom form supports controlled heating and stirring in setups built around flat-flange glassware. Offered as 1 unit, this flask is intended for preparative campaigns and installations that demand twenty-litre working volume. Manufacturer DWK Life Sciences supplies the DURAN® line within laboratory glass components for distillation, extraction, and flat-flange vessel systems. The grooved flange detail helps seating against matching DN100 hardware, which is relevant when assembling sealed multi-port configurations for solvent handling or concentration. Application areas include laboratory glass vessels, glass components for distillation and extraction, and flat-flange vessels. Select this FF round bottom flask when a DURAN® DN100 grooved flange design and 20 000 ml capacity are specified for expanded throughput in modular glass process trains.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: FF round bottom flask\u003c\/li\u003e\n\u003cli\u003eGlass line: DURAN®\u003c\/li\u003e\n\u003cli\u003eFlange size: DN100\u003c\/li\u003e\n\u003cli\u003eDesign: With groove\u003c\/li\u003e\n\u003cli\u003eCapacity: 20 000 ml\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56127531385164,"sku":"1YXL.1","price":657.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56127531417932,"sku":"1YXL.1","price":624.15,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56127531450700,"sku":"1YXL.1","price":591.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1YXL-1-1000Wx1000H_a40d21cb-800d-4c9d-8889-64f5be7bbdb0.jpg?v=1766408495"},{"product_id":"round-bottom-flask-with-stopcock-aap1-aap1","title":"Round bottom flask with stopcock, 10 ml, borosilicate glass 3.3, 1 pc","description":"\u003cp\u003eThe round bottom flask with stopcock is a 10 ml laboratory flask made of borosilicate glass 3.3 for small-scale liquid handling and reaction work. This single-unit vessel combines a round-bottom geometry with an integrated stopcock for controlled addition, sampling, or drainage of contents during laboratory procedures. Offered as 1 pc and weighing 1,045 kg, the flask suits compact setups in synthetic, analytical, and teaching laboratories where modest volumes are processed. Borosilicate glass 3.3 is specified as the construction material, aligning the item with common heat- and chemically resistant laboratory glassware families. From manufacturer Winzer, the 10 ml round bottom flask with stopcock fits workflows that rely on round flasks and related jointed or valved glass components. Clear capacity and material designation support selection against other round flasks used for heating, mixing, or temporary storage of liquids. Laboratories organising multi-size glassware inventories can add this small-volume option for trials, aliquots, and preparatory steps. Stated details include volume, material, stopcock configuration, unit quantity, and weight for straightforward product identification.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask with stopcock\u003c\/li\u003e\n\u003cli\u003eCapacity: 10 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass 3.3\u003c\/li\u003e\n\u003cli\u003eWeight: 1,045 kg\u003c\/li\u003e\n\u003cli\u003eConfiguration: With stopcock\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Winzer","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174399226188,"sku":"AAP1.1","price":65.35,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174399258956,"sku":"AAP1.1","price":62.08,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174399291724,"sku":"AAP1.1","price":58.82,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AAP1-1000Wx1000H_1c9896d9-f8ef-44b4-abda-61f5b7f9aac4.jpg?v=1766444587"},{"product_id":"round-bottom-flask-with-stopcock-aap2-aap2","title":"Round bottom flask with stopcock, 2000 ml, borosilicate glass 3.3, 1 pc","description":"\u003cp\u003eThe round bottom flask with stopcock is a 2000 ml laboratory flask in borosilicate glass 3.3 designed for larger-volume liquid handling and process steps. This single-unit vessel pairs round-bottom geometry with an integrated stopcock so contents can be added, sampled, or drained in a controlled manner during laboratory operations. Supplied as 1 pc and weighing 0,562 kg, the 2000 ml size supports preparative work, bulk aliquots, and scale-up tasks in synthetic and analytical environments. Borosilicate glass 3.3 is the stated material, placing the flask among standard laboratory glassware chosen for thermal and chemical resistance in routine use. Manufactured by Winzer, the round bottom flask with stopcock complements other round flasks and jointed glass components used across chemical and materials laboratories. Explicit capacity, material, and stopcock configuration simplify matching to existing glassware sets and heating or stirring arrangements. Groups maintaining multi-volume inventories can deploy this larger flask for intermediate storage, mixing, or transfer steps. Product information covers volume, material, configuration, unit quantity, and weight for clear selection within the round-flask category.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask with stopcock\u003c\/li\u003e\n\u003cli\u003eCapacity: 2000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass 3.3\u003c\/li\u003e\n\u003cli\u003eWeight: 0,562 kg\u003c\/li\u003e\n\u003cli\u003eConfiguration: With stopcock\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Winzer","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174399357260,"sku":"AAP2.1","price":148.4,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174399390028,"sku":"AAP2.1","price":140.98,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174399422796,"sku":"AAP2.1","price":133.56,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AAP1-1000Wx1000H_eb71d865-1706-45ce-abae-f97615bf369f.jpg?v=1766444588"},{"product_id":"rotilabo-double-neck-round-bottom-flask-ace4-ace4","title":"Rotilabo®-double neck round bottom flask, 250ml, borosilic.glass, NS29\/32(14\/23)","description":"\u003cp\u003eRotilabo®-double neck round bottom flask is a 250 ml borosilicate glass reaction and distillation vessel with ground glass joints NS 29\/32 (14\/23). The round-bottom body supports uniform heating and mixing, while the double-neck layout allows simultaneous connection of condensers, dropping funnels, thermometers or inert-gas lines in multi-port setups. Borosilicate glass provides the chemical and thermal resistance needed for standard organic synthesis, reflux and sample preparation work. Joint sizes NS 29\/32 and NS 14\/23 match common European laboratory glassware systems, enabling straightforward assembly with existing ground-joint components. Supplied as one piece and weighing 0,135 kg, this flask belongs to the Rotilabo® range from manufacturer ROTH SELECTION. It is suited to research, development and teaching laboratories that require compact multi-neck round flasks for small-scale reactions, distillations and controlled atmosphere experiments. Clear glass construction permits visual observation of contents throughout heating and stirring operations in routine labware applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Double neck round bottom flask\u003c\/li\u003e\n\u003cli\u003eMaterial: borosilicate glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 250 ml\u003c\/li\u003e\n\u003cli\u003eGround joints: NS 29\/32 (14\/23)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174428455244,"sku":"ACE4.1","price":68.65,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174428488012,"sku":"ACE4.1","price":65.22,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174428520780,"sku":"ACE4.1","price":61.79,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACE4-1000Wx1000H_e14e835f-f802-41b7-8283-1eda231cc835.jpg?v=1766444672"},{"product_id":"rotilabo-double-neck-round-bottom-flask-ace5-ace5","title":"Rotilabo®-double neck round bottom flask, 500ml, borosilic.glass, NS29\/32(14\/23)","description":"\u003cp\u003eRotilabo®-double neck round bottom flask is a 500 ml borosilicate glass vessel fitted with ground joints NS 29\/32 (14\/23) for multi-port laboratory work. The round bottom promotes even heat distribution during heating, reflux or distillation, while the two necks accommodate parallel attachment of condensers, addition funnels, probes or gas inlets. Borosilicate glass offers the thermal shock and chemical resistance typical of standard laboratory reaction flasks. Compatibility with NS 29\/32 and NS 14\/23 ground-joint accessories supports flexible apparatus assembly in organic synthesis, sample concentration and process development. This single unit weighs 0,340 kg and is part of the Rotilabo® laboratory glassware selection from manufacturer ROTH SELECTION. It serves research, quality-control and educational laboratories needing a mid-volume double-neck round bottom flask for controlled reactions and distillations. Transparent walls allow continuous visual checks of reaction progress, phase changes and boiling behaviour during routine bench operations with conventional heating mantles or baths.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Double neck round bottom flask\u003c\/li\u003e\n\u003cli\u003eMaterial: borosilicate glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 500 ml\u003c\/li\u003e\n\u003cli\u003eGround joints: NS 29\/32 (14\/23)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174428553548,"sku":"ACE5.1","price":55.4,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174428586316,"sku":"ACE5.1","price":52.63,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174428619084,"sku":"ACE5.1","price":49.86,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACE4-1000Wx1000H_77fb19a2-2c77-4a1f-8437-9af4d65d646a.jpg?v=1766444673"},{"product_id":"rotilabo-double-neck-round-bottom-flask-ace6-ace6","title":"Rotilabo®-double neck round bottom flask, 1000ml, borosilic.glass","description":"\u003cp\u003eRotilabo®-double neck round bottom flask is a 1000 ml borosilicate glass flask with ground joints NS 29\/32 (14\/23) designed for larger-scale laboratory reactions and distillations. The round-bottom geometry aids uniform heating and stirring of bigger working volumes, while the double-neck configuration permits concurrent use of condensers, dropping funnels, temperature sensors or inert-gas connections. Borosilicate glass supplies the chemical durability and thermal performance expected in everyday synthetic and preparative work. Standard NS 29\/32 and NS 14\/23 joints integrate readily with common European ground-glassware systems. Offered as one piece weighing 0,420 kg, the flask is from the Rotilabo® line of manufacturer ROTH SELECTION. It is appropriate for research, pilot and teaching laboratories that require a one-litre double-neck round bottom flask for reflux, concentration or multi-component setups. Clear glass enables direct observation of contents during heating, boiling and phase separation in standard labware workflows involving round flasks with ground glass joints.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Double neck round bottom flask\u003c\/li\u003e\n\u003cli\u003eMaterial: borosilicate glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 1000 ml\u003c\/li\u003e\n\u003cli\u003eGround joints: NS 29\/32 (14\/23)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174428651852,"sku":"ACE6.1","price":74.7,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174428684620,"sku":"ACE6.1","price":70.97,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174428717388,"sku":"ACE6.1","price":67.23,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACE4-1000Wx1000H_3eb9c394-f9ff-4922-b436-2fd633c5e050.jpg?v=1766444673"},{"product_id":"rotilabo-double-neck-round-bottom-flask-ace7-ace7","title":"Rotilabo®-double neck round bottom flask, 2000ml, borosilic.glass","description":"\u003cp\u003eRotilabo® double-neck round-bottom flask is a borosilicate glass laboratory vessel with a capacity of 2000 ml and ground joints NS 29\/32 and NS 14\/23. The two-neck layout allows simultaneous connection of condensers, addition funnels, thermometers or gas inlets for controlled reactions, distillations and multi-step preparative work. Its spherical base supports even heating with mantles or oil baths and efficient stirring of liquids and suspensions. This Rotilabo® flask from manufacturer ROTH SELECTION is supplied as 1 pc and weighs 0,650 kg. Borosilicate construction provides the durability needed for organic synthesis, solvent handling and laboratory scale-up. Standard joint sizes ensure fit with common adapters and stoppers so closed systems can be maintained when required. The vessel suits chemical, pharmaceutical and analytical laboratories that rely on multi-port round-bottom flasks for flexible process setups and safe handling of larger volumes within the category of round flasks and flasks with ground glass joints.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eCapacity: 2000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eMain joint: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eSide joint: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eDesign: Double-neck round-bottom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174428750156,"sku":"ACE7.1","price":87.75,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174428782924,"sku":"ACE7.1","price":83.36,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174428815692,"sku":"ACE7.1","price":78.98,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACE4-1000Wx1000H_0aafe47c-3166-45e4-b833-e18b5778af14.jpg?v=1766444674"},{"product_id":"rotilabo-double-neck-round-bottom-flask-ace8-ace8","title":"Rotilabo®-double neck round bottom flask, 4000ml, borosilic.glass","description":"\u003cp\u003eRotilabo® double-neck round-bottom flask is a borosilicate glass laboratory vessel with a capacity of 4000 ml and ground joints NS 45\/40 and NS 14\/23. The dual-neck configuration supports parallel attachment of condensers, dropping funnels, probes or inert-gas lines during larger-scale reactions, distillations and preparative chemistry. A rounded base promotes uniform heat transfer under heating mantles or baths and aids mixing of reaction mixtures. This Rotilabo® flask from manufacturer ROTH SELECTION is offered as 1 pc with a weight of 0,800 kg. Borosilicate glass delivers the mechanical and thermal performance expected for solvent work, synthesis and process development. Compatible joint geometry allows use with standard laboratory adapters and stoppers for closed or semi-closed setups. Ideal for chemical, pharmaceutical and analytical labs that need multi-port round-bottom glassware for flexible handling of substantial liquid volumes among round flasks and flasks with ground glass joints.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eCapacity: 4000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eMain joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eSide joint: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eDesign: Double-neck round-bottom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174428848460,"sku":"ACE8.1","price":120.2,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174428881228,"sku":"ACE8.1","price":114.19,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174428913996,"sku":"ACE8.1","price":108.18,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACE4-1000Wx1000H.jpg?v=1766444674"},{"product_id":"rotilabo-double-neck-round-bottom-flask-ace9-ace9","title":"Rotilabo®-double neck round bottom flask, 5000ml, borosilic.glass","description":"\u003cp\u003eRotilabo® double-neck round-bottom flask is a borosilicate glass laboratory vessel with a capacity of 5000 ml and ground joints NS 60\/46 and NS 14\/23. Two necks enable concurrent connection of condensers, addition apparatus, temperature sensors or gas inlets for controlled large-volume reactions, distillations and multi-step preparative workflows. The spherical bottom encourages even heating and effective stirring when used with suitable mantles or baths. This Rotilabo® flask from manufacturer ROTH SELECTION comes as 1 pc and weighs 1,500 kg. Borosilicate construction suits organic synthesis, solvent recovery and scale-up tasks that demand robust laboratory glassware. Standard ground-joint dimensions ensure interchangeability with common adapters and stoppers for secure assemblies. Designed for chemical, pharmaceutical and analytical environments requiring multi-port round-bottom flasks for flexible process control and safe handling of high liquid volumes within round flasks and flasks with ground glass joints.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eCapacity: 5000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eMain joint: NS 60\/46\u003c\/li\u003e\n\u003cli\u003eSide joint: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eDesign: Double-neck round-bottom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174429045068,"sku":"ACE9.1","price":175.25,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174429077836,"sku":"ACE9.1","price":166.49,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174429110604,"sku":"ACE9.1","price":157.73,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACE4-1000Wx1000H_4dcfb638-bd9a-4168-9a7e-626b17448118.jpg?v=1766444675"},{"product_id":"rotilabo-round-bottom-flask-50-ml-ach0-ach0","title":"Rotilabo®-round bottom flask, 50 ml, borosilicate glass, NS 14\/23, 10 unit(s)","description":"\u003cp\u003eRotilabo® round-bottom flask is a borosilicate glass laboratory vessel with a capacity of 50 ml and a ground joint NS 14\/23. The single-neck design is suited to small-scale reactions, distillations, evaporations and sample preparation where a compact round-bottom flask is required. Its spherical base supports even heating on mantles or baths and facilitates stirring of limited liquid volumes. This Rotilabo® flask from manufacturer ROTH SELECTION is supplied in a pack of 10 pc(s) with a total weight of 0,380 kg. Borosilicate glass provides the thermal and chemical durability expected in routine organic and analytical work. The NS 14\/23 joint matches standard laboratory stoppers, condensers and adapters for reliable closed assemblies. Practical for teaching, research and quality-control laboratories that need consistent small-volume round flasks and flasks with ground glass joints for everyday chemical handling and preparative tasks.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 10 pc(s)\u003c\/li\u003e\n\u003cli\u003eCapacity: 50 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eJoint: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eDesign: Round-bottom flask\u003c\/li\u003e\n\u003cli\u003eWeight: 0,380 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174429143372,"sku":"ACH0.1","price":191.35,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174429176140,"sku":"ACH0.1","price":181.78,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174429208908,"sku":"ACH0.1","price":172.22,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_43f88322-1765-4f45-9f5a-255a397bd0f8.jpg?v=1766444676"},{"product_id":"rotilabo-round-bottom-flask-50-ml-ach1-ach1","title":"Rotilabo®-round bottom flask, 50 ml, borosilicate glass, NS 19\/26, 10 unit(s)","description":"\u003cp\u003eRotilabo® round bottom flask, 50 ml is a borosilicate glass laboratory vessel fitted with a standard ground joint NS 19\/26. The spherical body supports even heat distribution during heating, reflux and small-scale reaction work, while the calibrated 50 ml volume suits preparative and teaching applications that require compact glassware. Each pack contains 10 pc(s), giving laboratories a ready stock of matched flasks for parallel setups or routine replacement. The NS 19\/26 joint interfaces cleanly with condensers, dropping funnels, adapters and other ground-glass components commonly used in organic and analytical workflows. Produced in the Rotilabo® range from manufacturer ROTH SELECTION, the flasks are intended for general laboratory glassware duties where chemical resistance and dimensional consistency of borosilicate glass are essential. Pack weight is 0,600 kg. These round bottom flasks belong to the established category of round flasks and flasks with ground glass joints and integrate directly into existing jointed apparatus without special tooling, supporting distillation trains, reaction mixtures and sample concentration steps under standard laboratory conditions.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 10 pc(s)\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eVolume: 50 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 19\/26\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174429241676,"sku":"ACH1.1","price":192.45,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174429274444,"sku":"ACH1.1","price":182.83,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174429307212,"sku":"ACH1.1","price":173.21,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_9aa438c0-e7c1-43d5-a358-60b91d621943.jpg?v=1766444677"},{"product_id":"rotilabo-round-bottom-flask-50-ml-ach2-ach2","title":"Rotilabo®-round bottom flask, 50 ml, borosilicate glass, NS 29\/32, 10 unit(s)","description":"\u003cp\u003eRotilabo® round bottom flask, 50 ml is a borosilicate glass round-bottom vessel equipped with a larger standard ground joint NS 29\/32. The 50 ml capacity is practical for small-scale synthesis, sample work-up and educational experiments, while the NS 29\/32 joint provides a wider connection suited to bulkier adapters, condensers or multi-neck assemblies. Supplied as 10 pc(s) per pack, the flasks allow laboratories to maintain consistent inventory across benches and teaching stations. Borosilicate construction delivers the thermal and chemical durability expected of laboratory glassware used with common solvents and reagents. This Rotilabo® item from manufacturer ROTH SELECTION is designed for everyday use among round flasks and flasks with ground glass joints. Pack weight is 0,560 kg. The classic round-bottom geometry promotes uniform heating when clamped above a heating mantle or water bath and pairs with standard jointed accessories for reflux, distillation or rotary-evaporation workflows without modification of existing glassware sets.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 10 pc(s)\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eVolume: 50 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174429339980,"sku":"ACH2.1","price":197.8,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174429372748,"sku":"ACH2.1","price":187.91,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174429405516,"sku":"ACH2.1","price":178.02,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_fedfcdb8-da36-43c3-bb1c-2266ec7b81bf.jpg?v=1766444677"},{"product_id":"rotilabo-round-bottom-flask-100-ml-ach3-ach3","title":"Rotilabo®-round bottom flask, 100 ml, borosilicate glass, NS 14\/23, 10 unit(s)","description":"\u003cp\u003eRotilabo® round bottom flask, 100 ml is a borosilicate glass laboratory flask with a compact standard ground joint NS 14\/23. Doubling the working volume relative to typical 50 ml flasks, the 100 ml size supports medium-scale reactions, solvent recovery and intermediate storage while remaining easy to clamp and heat. The NS 14\/23 joint matches smaller condensers, stoppers and transfer adapters frequently used in micro- and semi-micro setups. Packs contain 10 pc(s), offering convenient replenishment for research groups and teaching laboratories that rely on interchangeable ground-glass systems. Within the Rotilabo® assortment from manufacturer ROTH SELECTION, these vessels serve as core consumable glassware among round flasks and flasks with ground glass joints. Pack weight is 0,900 kg. Borosilicate glass provides the clarity and resistance needed for visual monitoring of reactions and for contact with a wide range of laboratory chemicals. The round-bottom form factor ensures stable seating in heating mantles and cork rings and integrates smoothly into distillation and reflux assemblies built on NS 14\/23 components.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 10 pc(s)\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eVolume: 100 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 14\/23\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174429438284,"sku":"ACH3.1","price":244.05,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174429471052,"sku":"ACH3.1","price":231.85,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174429503820,"sku":"ACH3.1","price":219.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_b2bdf6be-1f88-4792-8384-0ab4b811153f.jpg?v=1766444678"},{"product_id":"rotilabo-round-bottom-flask-100-ml-ach4-ach4","title":"Rotilabo®-round bottom flask, 100 ml, borosilicate glass, NS 19\/26, 10 unit(s)","description":"\u003cp\u003eRotilabo® round bottom flask, 100 ml is a borosilicate glass round-bottom vessel fitted with standard ground joint NS 19\/26. The 100 ml working volume is well suited to preparative chemistry, sample concentration and multi-step procedures that exceed micro-scale capacities yet remain manageable on a standard laboratory bench. The NS 19\/26 joint is a widely used intermediate size, enabling direct coupling to condensers, dropping funnels, thermometer adapters and other jointed accessories. Each unit is supplied in packs of 10 pc(s), supporting efficient stocking for routine laboratory operations. This Rotilabo® flask from manufacturer ROTH SELECTION belongs to the category of round flasks and flasks with ground glass joints and is intended for general chemical and analytical glassware use. Pack weight is 0,800 kg. Borosilicate construction offers the thermal shock resistance and chemical durability required for heating, cooling and solvent contact. The spherical base promotes even heat transfer in mantles or baths and seats securely in standard clamps and supports during reflux, distillation or reaction monitoring.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 10 pc(s)\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eVolume: 100 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 19\/26\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174429536588,"sku":"ACH4.1","price":244.05,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174429569356,"sku":"ACH4.1","price":231.85,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174429602124,"sku":"ACH4.1","price":219.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H.jpg?v=1766444679"},{"product_id":"rotilabo-round-bottom-flask-100-ml-ach5-ach5","title":"Rotilabo®-round bottom flask, 100 ml, borosilicate glass, NS 29\/32, 10 unit(s)","description":"\u003cp\u003eRotilabo® round bottom flask, 100 ml is a laboratory round flask manufactured from borosilicate glass and fitted with a standard ground joint NS 29\/32. The spherical body is intended for preparative and analytical work where even heating, controlled mixing and reliable connection to ground-glass apparatus are required. The NS 29\/32 joint matches common condensers, adapters, stoppers and distillation components used in organic synthesis, extraction and general wet-chemistry workflows. Capacity of 100 ml suits small- to medium-scale reactions, sample digestion and solvent handling on the bench. Each pack contains 10 pc(s), supporting multi-station laboratories, teaching labs and routine restocking of glassware drawers. These flasks come from manufacturer ROTH SELECTION under the Rotilabo® line for laboratory glass vessels with ground joints. Pack weight is 0,900 kg. The design belongs to the established category of round flasks and flasks with ground glass joints, making it straightforward to integrate into existing clamp, mantle and joint systems without changing joint standards. Clear volume marking by capacity and joint size helps laboratories select the correct vessel for each setup.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 10 pc(s)\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eCapacity: 100 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174429634892,"sku":"ACH5.1","price":244.05,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174429667660,"sku":"ACH5.1","price":231.85,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174429700428,"sku":"ACH5.1","price":219.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_c6437d57-a603-468e-bb91-0b8662fed0c2.jpg?v=1766444679"},{"product_id":"rotilabo-round-bottom-flask-250-ml-ach6-ach6","title":"Rotilabo®-round bottom flask, 250 ml, borosilicate glass, NS 29\/32, 10 unit(s)","description":"\u003cp\u003eRotilabo® round bottom flask, 250 ml is a borosilicate glass round flask with standard ground joint NS 29\/32 for everyday laboratory synthesis and sample preparation. The 250 ml working volume covers mid-scale reactions, reflux setups, distillations and solvent recovery where a larger charge than micro-scale glassware is needed while remaining practical on a standard heating mantle. The NS 29\/32 joint ensures compatibility with widely used condensers, dropping funnels, adapters and other ground-glass components. Supplied in packs of 10 pc(s), the flasks support parallel experiments, shared instrument benches and teaching environments that require several identical vessels. This item is offered from manufacturer ROTH SELECTION within the Rotilabo® laboratory glass range. Pack weight is 0,850 kg. As part of the round flasks and flasks with ground glass joints category, the vessel is intended for chemical, pharmaceutical and analytical laboratories that standardise on NS 29\/32 connections. Clear identification by capacity and joint size simplifies ordering and inventory control for glassware stores and preparative groups.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 10 pc(s)\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eCapacity: 250 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174429765964,"sku":"ACH6.1","price":306.4,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174429798732,"sku":"ACH6.1","price":291.08,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174429831500,"sku":"ACH6.1","price":275.76,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_6b932dfe-fea7-4d24-80b8-954b3a213a1c.jpg?v=1766444680"},{"product_id":"rotilabo-round-bottom-flask-250-ml-ach7-ach7","title":"Rotilabo®-round bottom flask, 250 ml, borosilicate glass, NS 45\/40, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 250 ml is a borosilicate glass laboratory flask equipped with a larger standard ground joint NS 45\/40. The 250 ml capacity is suitable for mid-scale reaction mixtures, reflux and distillation work where a wider joint is preferred for charging solids, fitting bulkier adapters or matching existing NS 45\/40 apparatus trains. Borosilicate construction places the vessel in the usual laboratory glassware class for chemical handling on the bench. This variant is supplied as 1 pc, ideal when only a single flask of this joint size is required or when replacing an individual piece in a mixed joint inventory. The flask is available from manufacturer ROTH SELECTION under the Rotilabo® designation for round flasks with ground glass joints. Unit weight is 0,190 kg. Laboratories that already operate NS 45\/40 condensers, heads or multi-neck adapters can integrate this 250 ml round bottom flask without changing joint standards. Explicit labelling by volume and NS size supports correct selection beside NS 29\/32 options of the same capacity.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eCapacity: 250 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174429897036,"sku":"ACH7.1","price":46.7,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174429929804,"sku":"ACH7.1","price":44.37,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174429962572,"sku":"ACH7.1","price":42.03,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_d9f5baad-3050-4275-a9bb-e4ae3a746dec.jpg?v=1766444680"},{"product_id":"rotilabo-round-bottom-flask-500-ml-ach8-ach8","title":"Rotilabo®-round bottom flask, 500 ml, borosilicate glass, NS 29\/32, 10 unit(s)","description":"\u003cp\u003eRotilabo® round bottom flask, 500 ml is a borosilicate glass round flask with standard ground joint NS 29\/32 for larger preparative volumes in the laboratory. The 500 ml capacity supports scale-up of reactions, solvent distillations, extractions and batch work where more headspace and working volume are needed than with 100 ml or 250 ml flasks, while remaining compatible with common heating mantles and stands. The NS 29\/32 joint connects directly to standard condensers, adapters, stoppers and other ground-glass fittings used across organic and general chemistry setups. Packs contain 10 pc(s), which suits multi-user laboratories, campaign work and glassware stores that keep several identical 500 ml vessels on hand. These flasks are supplied from manufacturer ROTH SELECTION in the Rotilabo® laboratory glass assortment. Pack weight is 1,500 kg. Positioned in the category of round flasks and flasks with ground glass joints, the product helps laboratories maintain a consistent NS 29\/32 joint system from smaller to larger volumes. Capacity and joint size are stated clearly for straightforward catalogue selection and restocking.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 10 pc(s)\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eCapacity: 500 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174430093644,"sku":"ACH8.1","price":335.4,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174430126412,"sku":"ACH8.1","price":318.63,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174430159180,"sku":"ACH8.1","price":301.86,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_38603ecc-7c3e-420b-983f-fc8ee053c1da.jpg?v=1766444681"},{"product_id":"rotilabo-round-bottom-flask-500-ml-ach9-ach9","title":"Rotilabo®-round bottom flask, 500 ml, borosilicate glass, NS 45\/40, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 500 ml is a laboratory glass vessel made from borosilicate glass with a standard ground joint NS 45\/40. It is intended for chemical synthesis, distillation, reflux and heating work where a spherical reaction space supports even heat distribution and efficient mixing. The 500 ml working volume suits medium-scale preparations, intermediate reaction steps and teaching demonstrations. Clear borosilicate walls allow visual monitoring of colour changes, boiling behaviour and phase separations during experiments. The NS 45\/40 joint connects readily to common condensers, adapters, stoppers and other ground-glass components used in organic and inorganic setups. Supplied as one piece with a weight of 0,240 kg, the flask is practical for routine bench work when held in a heating mantle, cork ring or clamp assembly. This Rotilabo® flask from manufacturer ROTH SELECTION integrates into standard laboratory glassware trains for research, quality control and educational laboratories. Its round-bottom geometry remains a core format for controlled heating under atmospheric or reduced pressure when paired with appropriate supports and safety equipment.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eCapacity: 500 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174430191948,"sku":"ACH9.1","price":54.75,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174430224716,"sku":"ACH9.1","price":52.01,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174430257484,"sku":"ACH9.1","price":49.28,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_38418155-9e8e-425f-9095-2b55b3f4bc08.jpg?v=1766444681"},{"product_id":"rotilabo-round-bottom-flask-1000-ml-ack0-ack0","title":"Rotilabo®-round bottom flask, 1000 ml, borosilicate glass, NS 29\/32, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 1000 ml is a borosilicate glass laboratory vessel fitted with a standard ground joint NS 29\/32. The one-litre capacity supports larger reaction batches, solvent distillations and multi-step preparations where a spherical flask body aids uniform heating and stirring. Borosilicate construction provides the thermal and chemical resistance expected for everyday organic and inorganic laboratory practice. The NS 29\/32 joint matches widely used condensers, dropping funnels, adapters and stoppers, simplifying assembly of reflux or distillation trains. Clear walls enable continuous observation of boiling, colour shifts and phase behaviour during processing. Delivered as a single unit weighing 0,350 kg, the flask is suited to heating mantles, oil baths and standard clamp supports on the bench or in a fume hood. This Rotilabo® round bottom flask from manufacturer ROTH SELECTION is a practical choice for research groups, teaching laboratories and quality-control workflows that rely on interchangeable ground-glassware. Its round geometry remains standard for controlled heating under atmospheric or reduced pressure when correctly supported and operated with suitable safety measures.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eCapacity: 1000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174430388556,"sku":"ACK0.1","price":65.35,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174430421324,"sku":"ACK0.1","price":62.08,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174430454092,"sku":"ACK0.1","price":58.82,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_f81d6492-482c-4ce0-b159-1c0feb66f70b.jpg?v=1766444682"},{"product_id":"rotilabo-round-bottom-flask-1000-ml-ack1-ack1","title":"Rotilabo®-round bottom flask, 1000 ml, borosilicate glass, NS 45\/40, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 1000 ml is a borosilicate glass reaction vessel with a wide standard ground joint NS 45\/40. The one-litre volume is appropriate for scale-up work, solvent recovery, reflux reactions and other procedures that benefit from a spherical flask shape and even heat transfer. Borosilicate glass delivers the chemical durability and thermal performance required for routine laboratory heating and cooling cycles. The larger NS 45\/40 joint accommodates corresponding condensers, adapters and accessories, supporting flexible glassware configurations in organic and inorganic chemistry. Transparent walls allow operators to follow colour development, boiling patterns and separations without interrupting the process. Supplied as one piece with a weight of 0,365 kg, the flask pairs with heating mantles, cork rings and laboratory clamps for stable bench or hood use. This Rotilabo® flask from manufacturer ROTH SELECTION fits established ground-glass systems used in research, education and analytical environments. Round-bottom geometry continues to be a preferred format for controlled thermal work under atmospheric or reduced pressure when combined with proper supports and laboratory safety practice.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eCapacity: 1000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174430486860,"sku":"ACK1.1","price":63.5,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174430519628,"sku":"ACK1.1","price":60.33,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174430552396,"sku":"ACK1.1","price":57.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_9b4e1aa4-adad-43cd-9fc0-e950127e6740.jpg?v=1766444683"},{"product_id":"rotilabo-round-bottom-flask-2000-ml-ack2-ack2","title":"Rotilabo®-round bottom flask, 2000 ml, borosilicate glass, NS 29\/32, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 2000 ml is a large-capacity borosilicate glass vessel equipped with a standard ground joint NS 29\/32. The two-litre working volume serves bulk preparations, solvent distillations, extractions and other laboratory operations that need a spacious spherical reaction chamber. Borosilicate glass offers the thermal shock resistance and chemical stability expected for repeated heating and cooling in everyday lab service. The NS 29\/32 joint interfaces with common condensers, adapters, stoppers and related ground-glass components, enabling straightforward assembly of reflux or distillation setups. Clear walls support visual control of boiling, mixing and phase changes throughout the process. Provided as a single unit weighing 0,570 kg, the flask is intended for use with appropriately sized heating mantles, stands and clamps. This Rotilabo® round bottom flask from manufacturer ROTH SELECTION is suitable for research, teaching and production-support laboratories that standardise on interchangeable glassware. Its round-bottom design remains a core choice for controlled thermal processing under atmospheric or reduced pressure when correctly supported and handled according to laboratory safety guidelines.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eCapacity: 2000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174430617932,"sku":"ACK2.1","price":72.4,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174430650700,"sku":"ACK2.1","price":68.78,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174430683468,"sku":"ACK2.1","price":65.16,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_a0fb42a2-4b54-4282-9889-cf34374e56d5.jpg?v=1766444683"},{"product_id":"rotilabo-round-bottom-flask-2000-ml-ack3-ack3","title":"Rotilabo®-round bottom flask, 2000 ml, borosilicate glass, NS 45\/40, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 2000 ml is a laboratory round-bottom vessel made of borosilicate glass with a standard ground joint NS 45\/40. It is intended for use as jointed laboratory glassware in reaction, distillation and general preparative setups where a spherical body supports even heating and mixing. The 2000 ml capacity suits medium-scale laboratory work, while the NS 45\/40 joint enables secure connection to condensers, adapters and other ground-glass components commonly used in research and teaching laboratories. Borosilicate glass construction provides the chemical and thermal behaviour expected of routine laboratory flasks. Supplied as 1 pc from manufacturer ROTH SELECTION, this Rotilabo® flask weighs 0,580 kg and fits standard clamps and supports for bench-top use. As part of the range of round flasks and flasks with ground glass joints, it offers a practical single-unit option for laboratories that require durable, interchangeable jointed glassware in the two-litre class for everyday synthetic and analytical workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eCapacity: 2000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174431011148,"sku":"ACK3.1","price":80.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174431043916,"sku":"ACK3.1","price":76.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174431076684,"sku":"ACK3.1","price":72.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_54b22194-ba84-435c-b58f-b5cfabb123c2.jpg?v=1766444684"},{"product_id":"rotilabo-round-bottom-flask-4000-ml-ack4-ack4","title":"Rotilabo®-round bottom flask, 4000 ml, borosilicate glass, NS 45\/40, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 4000 ml is a borosilicate glass round-bottom laboratory flask fitted with a standard ground joint NS 45\/40. Designed for jointed apparatus assemblies, it serves reaction, distillation and preparative applications in which a larger spherical vessel is required for heating and mixing. The 4000 ml volume supports larger-scale laboratory procedures, and the NS 45\/40 joint allows reliable coupling to condensers, adapters and complementary ground-glass parts. Borosilicate glass delivers the chemical resistance and thermal performance associated with standard laboratory glassware. Each flask is supplied as 1 pc from manufacturer ROTH SELECTION and weighs 1,200 kg, making it suitable for secure mounting in laboratory stands and heating equipment. Within the category of round flasks and flasks with ground glass joints, this Rotilabo® model provides a single-unit solution for laboratories that need robust, interchangeable four-litre round-bottom glassware for routine synthetic, process and teaching work.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eCapacity: 4000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174431142220,"sku":"ACK4.1","price":93.15,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174431174988,"sku":"ACK4.1","price":88.49,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174431207756,"sku":"ACK4.1","price":83.84,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_4767b4fd-a764-47db-bb16-b470138945be.jpg?v=1766444685"},{"product_id":"rotilabo-round-bottom-flask-6000-ml-ack5-ack5","title":"Rotilabo®-round bottom flask, 6000 ml, borosilicate glass, NS 60\/46, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 6000 ml is a large-capacity laboratory round-bottom vessel manufactured from borosilicate glass with a standard ground joint NS 60\/46. It is suited to jointed glassware setups for reactions, distillations and preparative work that demand a substantial spherical working volume and uniform heat distribution. The 6000 ml capacity addresses larger laboratory batches, while the NS 60\/46 joint ensures a secure interface with matching condensers, adapters and other ground-glass components. Borosilicate glass construction supports the chemical and thermal demands of everyday laboratory practice. Supplied as 1 pc from manufacturer ROTH SELECTION, the flask has a weight of 2,170 kg and is intended for stable mounting in appropriate laboratory supports. As part of the Rotilabo® line of round flasks and flasks with ground glass joints, this six-litre model offers laboratories a practical single-unit choice for scalable synthetic and process workflows that rely on durable, interchangeable jointed glassware.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eCapacity: 6000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 60\/46\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174431240524,"sku":"ACK5.1","price":128.1,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174431273292,"sku":"ACK5.1","price":121.7,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174431306060,"sku":"ACK5.1","price":115.29,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_7d74d1d9-76c3-49f3-8e3d-25ab60838075.jpg?v=1766444685"},{"product_id":"rotilabo-round-bottom-flask-10000-ml-ack6-ack6","title":"Rotilabo®-round bottom flask, 10000 ml, borosilicate glass, NS 60\/46, 1 pc","description":"\u003cp\u003eRotilabo® round bottom flask, 10000 ml is a high-capacity borosilicate glass round-bottom laboratory flask equipped with a standard ground joint NS 60\/46. It is intended for jointed apparatus used in large-volume reaction, distillation and preparative laboratory work where a spacious spherical body aids heating and mixing. The 10000 ml capacity serves bulk or multi-step procedures, and the NS 60\/46 joint provides a secure connection to compatible condensers, adapters and other ground-glass fittings. Borosilicate glass supplies the chemical durability and thermal behaviour expected of laboratory vessels of this type. Each unit is supplied as 1 pc from manufacturer ROTH SELECTION and weighs 1,600 kg, supporting stable installation in suitable laboratory stands and heating systems. Within the Rotilabo® range of round flasks and flasks with ground glass joints, this ten-litre flask gives laboratories a single-unit option for demanding workflows that require robust, interchangeable large-volume jointed glassware.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eCapacity: 10000 ml\u003c\/li\u003e\n\u003cli\u003eMaterial: Borosilicate glass\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 60\/46\u003c\/li\u003e\n\u003cli\u003eProduct type: Round bottom flask\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174431338828,"sku":"ACK6.1","price":197.8,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174431371596,"sku":"ACK6.1","price":187.91,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174431404364,"sku":"ACK6.1","price":178.02,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/ACH0-1000Wx1000H_17ceb700-fdbd-4d78-a1da-0cbece45eb35.jpg?v=1766444686"},{"product_id":"centrifuge-glasses-round-bottom-clc7-clc7","title":"Centrifuge glasses, round bottom, 15 ml, with screw caps, 100 unit(s)","description":"\u003cp\u003eCentrifuge glasses with round bottom are laboratory vessels intended for centrifugation workflows where a reliable 15 ml working volume and a secure closure are required. Each glass is supplied with a screw cap, supporting controlled handling of samples during preparation, spinning and short-term storage in the lab. The round-bottom geometry suits standard centrifuge tube practices and helps maintain stable seating in compatible rotors and adapters used for routine separations. Offered as a pack of 100 pc(s) from manufacturer ROTH SELECTION, this format is practical for busy laboratories that need a consistent stock of centrifuge tubes for daily sample processing. With a total pack weight of 1,300 kg, the unit quantity is convenient for central stores and bench restocking alike. These centrifuge glasses fall within laboratory glassware and consumables for centrifuge tubes and bottles, making them a straightforward choice for general liquid handling and sample fractionation tasks where screw-capped, round-bottom 15 ml vessels are specified. Use them wherever clear identification of volume, closure type and pack size supports reproducible laboratory organisation.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 100 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: Centrifuge glasses\u003c\/li\u003e\n\u003cli\u003eVolume: 15 ml\u003c\/li\u003e\n\u003cli\u003eDesign: Round bottom\u003c\/li\u003e\n\u003cli\u003eClosure: Screw caps\u003c\/li\u003e\n\u003cli\u003eWeight: 1,300 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"100 pc(s) \/ 1 piece","offer_id":56180028047692,"sku":"CLC7.1","price":96.05,"currency_code":"EUR","in_stock":true},{"title":"100 pc(s) \/ 6+ pieces","offer_id":56180028080460,"sku":"CLC7.1","price":91.25,"currency_code":"EUR","in_stock":true},{"title":"100 pc(s) \/ 24+ pieces","offer_id":56180028113228,"sku":"CLC7.1","price":86.45,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/CLC7-01-1000Wx1000H_e5ba63f2-30ce-49f5-81c9-26c9d371f932.jpg?v=1766447600"},{"product_id":"round-flasks-duran-transparent-glass-e588-e588","title":"Round flasks,DURAN®, transparent glass, 25 ml, NS 14\/23, 1 pc","description":"\u003cp\u003eRound flask DURAN®, transparent glass, 25 ml, NS 14\/23 is a compact laboratory flask for distillation, sample preparation, and related glassware assemblies. Fabricated from clear DURAN® glass, it combines chemical resistance with good visibility of contents during heating, cooling, or solvent work. The 25 ml nominal volume suits small-scale reactions, aliquots, and analytical preparations, while the NS 14\/23 ground joint provides a standardized connection to condensers, adapters, and other jointed apparatus. Weighing 0,030 kg and supplied as 1 pc, the flask is practical for routine bench use in environmental analysis, sampling workflows, and Soxhlet or distillation setups. This round flask from manufacturer Lenz integrates readily into modular glass trains where a short-path or small-volume round-bottom vessel is required. Transparent DURAN® construction supports visual process control, and the NS 14\/23 joint ensures compatibility with common European laboratory ground-joint systems used across teaching, research, and quality-control laboratories.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eGlass type: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 25 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eWeight: 0,030 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181318385996,"sku":"E588.1","price":10.45,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181318418764,"sku":"E588.1","price":9.93,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181318451532,"sku":"E588.1","price":9.41,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_d70b5eed-1c1f-43b6-9ca3-e994334d594c.jpg?v=1766448257"},{"product_id":"round-flasks-duran-transparent-glass-e589-e589","title":"Round flasks,DURAN®, transparent glass, 50 ml, NS 14\/23, 1 pc","description":"\u003cp\u003eRound flask DURAN®, transparent glass, 50 ml, NS 14\/23 is a laboratory round flask intended for distillation, sample preparation, and jointed glass assemblies. Clear DURAN® glass offers thermal and chemical robustness together with straightforward visual inspection of the contents during heating, reflux, or solvent handling. The 50 ml capacity is well matched to medium-small reaction and work-up volumes, while the NS 14\/23 ground joint ensures standardized coupling to condensers, still heads, and other NS 14\/23 components. At a weight of 0,033 kg and packed as 1 pc, the flask is convenient for everyday use in environmental analysis, sampling and sample-preparation trains, and Soxhlet or distillation apparatus. This round flask from manufacturer Lenz fits modular European ground-joint systems used in research, teaching, and quality-control laboratories. Transparent DURAN® construction supports process monitoring, and the NS 14\/23 joint maintains interchangeability across common laboratory glassware setups without specialized adapters for standard configurations.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eGlass type: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 50 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eWeight: 0,033 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181318484300,"sku":"E589.1","price":11.95,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181318517068,"sku":"E589.1","price":11.35,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181318549836,"sku":"E589.1","price":10.76,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_19525c3d-1d14-4998-b1bb-d56cafc3ed5e.jpg?v=1766448258"},{"product_id":"round-flasks-duran-transparent-glass-e590-e590","title":"Round flasks,DURAN®, transparent glass, 50 ml, NS 29\/32, 1 pc","description":"\u003cp\u003eRound flask DURAN®, transparent glass, 50 ml, NS 29\/32 is a jointed laboratory flask for distillation, sample preparation, and related vacuum or atmospheric glassware trains. Produced from clear DURAN® glass, it provides chemical durability and unobstructed observation of liquids and suspensions during heating, cooling, or solvent exchange. The 50 ml working volume suits small- to mid-scale preparations, while the larger NS 29\/32 ground joint connects directly to condensers, adapters, and apparatus built around the NS 29\/32 standard. Weighing 0,060 kg and supplied as 1 pc, the flask is suited to routine bench work in environmental analysis, sampling workflows, and distillation or Soxhlet assemblies. This round flask from manufacturer Lenz integrates into modular European joint systems where a wider neck and NS 29\/32 compatibility are preferred. Transparent DURAN® glass aids visual control of the process, and the standardized joint supports reliable, interchangeable setups in research, teaching, and analytical laboratories without nonstandard fittings for typical configurations.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eGlass type: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 50 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eWeight: 0,060 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181318582604,"sku":"E590.1","price":11.5,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181318615372,"sku":"E590.1","price":10.93,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181318648140,"sku":"E590.1","price":10.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H.jpg?v=1766448260"},{"product_id":"round-flasks-duran-transparent-glass-e591-e591","title":"Round flasks,DURAN®, transparent glass, 100 ml, NS 14\/23, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 100 ml capacity and NS 14\/23 ground joint are laboratory vessels for distillation, sampling and sample-preparation work. The clear DURAN® glass body gives direct visual control of contents during heating, mixing or solvent handling, while the standardised NS 14\/23 joint allows secure coupling to condensers, adapters and other ground-joint components. Each flask is supplied as 1 pc and has a weight of 0,050 kg, supporting straightforward assembly on the bench or in compact apparatus frames. These round flasks from manufacturer Lenz fit environmental-analysis workflows as well as distillation and Soxhlet appliance set-ups where a compact round-bottom vessel with an NS 14\/23 connection is required. The 100 ml working volume suits routine laboratory-scale operations, teaching demonstrations and quality-control tasks that rely on transparent glassware. Integration into existing ground-joint trains is straightforward thanks to the defined joint size, helping laboratories maintain consistent apparatus configurations for sample preparation and related analytical procedures.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 100 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eWeight: 0,050 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181318680908,"sku":"E591.1","price":13.2,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181318713676,"sku":"E591.1","price":12.54,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181318746444,"sku":"E591.1","price":11.88,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_55b0ba29-a77d-440f-b1a1-e6cc88b98fa1.jpg?v=1766448261"},{"product_id":"round-flasks-duran-transparent-glass-e592-e592","title":"Round flasks,DURAN®, transparent glass, 100 ml, NS 29\/32, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 100 ml capacity and NS 29\/32 ground joint serve as core vessels for laboratory distillation, sampling and sample-preparation applications. Transparent DURAN® glass enables clear observation of liquids and reaction mixtures, while the larger NS 29\/32 joint provides a robust interface to condensers, still heads and complementary ground-joint glassware. Supplied as 1 pc with a weight of 0,070 kg, the flask is practical for everyday bench assembly and modular apparatus builds. These round flasks from manufacturer Lenz are aligned with environmental-analysis work as well as distillation and Soxhlet appliance configurations that specify an NS 29\/32 connection on a 100 ml round-bottom body. The defined joint size supports repeatable set-ups across research, teaching and quality-control laboratories. Users can incorporate the vessel into existing glass trains for solvent handling, extract concentration or general sample preparation without altering standard joint geometry, maintaining compatibility within common laboratory glassware systems.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 100 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eWeight: 0,070 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181318779212,"sku":"E592.1","price":11.05,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181318811980,"sku":"E592.1","price":10.5,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181318844748,"sku":"E592.1","price":9.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_ebc4d55b-4af4-4b55-8267-327221e41917.jpg?v=1766448261"},{"product_id":"round-flasks-duran-transparent-glass-e593-e593","title":"Round flasks,DURAN®, transparent glass, 250 ml, NS 29\/32, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 250 ml capacity and NS 29\/32 ground joint are intended for distillation, sampling and sample-preparation duties in the laboratory. The transparent DURAN® glass construction allows continuous visual monitoring of contents, and the NS 29\/32 joint ensures reliable connection to condensers, adapters and other standardised ground-joint components. Each unit is supplied as 1 pc and weighs 0,120 kg, offering a practical balance of working volume and handling weight for routine apparatus assembly. These round flasks from manufacturer Lenz support environmental-analysis workflows together with distillation and Soxhlet appliance set-ups that call for a 250 ml round-bottom vessel with an NS 29\/32 joint. The larger capacity suits laboratory-scale operations where additional headspace or working volume is advantageous, while the defined joint geometry keeps the flask compatible with common glassware trains. Research, teaching and quality-control laboratories can deploy the product for sample preparation and related distillation tasks within established ground-joint systems.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 250 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eWeight: 0,120 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181318877516,"sku":"E593.1","price":22.9,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181318910284,"sku":"E593.1","price":21.76,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181318943052,"sku":"E593.1","price":20.61,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_8705df39-32ba-425e-accf-cf74d29662dc.jpg?v=1766448263"},{"product_id":"round-flasks-duran-transparent-glass-e594-e594","title":"Round flasks,DURAN®, transparent glass, 250 ml, NS 45\/40, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 250 ml capacity and NS 45\/40 ground joint provide laboratory vessels for distillation, sampling and sample-preparation applications. Clear DURAN® glass permits direct observation of process contents, while the wide NS 45\/40 joint offers a substantial connection interface for condensers, still heads and matching ground-joint accessories. The flask is supplied as 1 pc and has a weight of 0,154 kg, making it suitable for stable mounting in distillation frames and related apparatus. These round flasks from manufacturer Lenz address needs in environmental analysis as well as distillation and Soxhlet appliance configurations that specify a 250 ml round-bottom body with an NS 45\/40 joint. The combination of working volume and large joint size supports laboratory-scale set-ups requiring broader access or higher vapour throughput at the neck. Laboratories engaged in sample preparation, teaching and quality control can integrate the vessel into existing ground-joint assemblies while retaining standard joint compatibility across their glassware inventory.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 250 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eWeight: 0,154 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181318975820,"sku":"E594.1","price":65.05,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319008588,"sku":"E594.1","price":61.8,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319041356,"sku":"E594.1","price":58.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_3eb62243-1910-4b92-ab7e-f38ea8b2ccf3.jpg?v=1766448263"},{"product_id":"round-flasks-duran-transparent-glass-e595-e595","title":"Round flasks,DURAN®, transparent glass, 500 ml, NS 29\/32, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 500 ml capacity and NS 29\/32 ground joint are laboratory round-bottom vessels for distillation, Soxhlet work and sample preparation. The transparent DURAN® glass body allows continuous visual monitoring of contents during heating, reflux, concentration or extraction steps. A standardised NS 29\/32 joint ensures straightforward connection to condensers, adapters and other matching ground-joint components commonly used in environmental analysis and routine laboratory assemblies. Each flask is supplied as 1 pc and has a weight of 0,200 kg, making it practical for medium-scale distillation and sampling workflows. These round flasks from manufacturer Lenz fit established glassware trains for distillation and Soxhlet appliances as well as broader sampling and sample-preparation tasks. The 500 ml working volume supports typical laboratory batch sizes without unnecessary bulk, while the round form promotes even heat distribution when used with appropriate heating equipment. Suitable for research, teaching and routine analytical laboratories that require reliable DURAN® round flasks with NS 29\/32 connectivity for distillation and related preparative operations.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 500 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eWeight: 0,200 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319074124,"sku":"E595.1","price":29.35,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319106892,"sku":"E595.1","price":27.88,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319139660,"sku":"E595.1","price":26.42,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_d2775722-9a3f-40d6-849c-0f15df533715.jpg?v=1766448264"},{"product_id":"round-flasks-duran-transparent-glass-e596-e596","title":"Round flasks,DURAN®, transparent glass, 500 ml, NS 45\/40, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 500 ml capacity and NS 45\/40 ground joint are laboratory round-bottom vessels intended for distillation, Soxhlet appliances and sample-preparation work. The transparent DURAN® glass construction permits clear observation of the contents throughout heating, reflux and extraction procedures. The larger NS 45\/40 standard joint provides a wide, secure connection to matching condensers, adapters and other ground-joint glassware used in environmental analysis and preparative setups. Each unit is supplied as 1 pc and weighs 0,160 kg, offering a convenient single-flask pack for medium-volume laboratory tasks. These round flasks from manufacturer Lenz integrate into distillation and Soxhlet assemblies as well as sampling and sample-preparation workflows. The 500 ml volume suits typical batch sizes in research and routine analytical environments, while the round bottom supports uniform heating when paired with suitable laboratory heaters. Ideal for laboratories that specify DURAN® transparent round flasks with NS 45\/40 joints for distillation trains and related preparative applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 500 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eWeight: 0,160 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319172428,"sku":"E596.1","price":82.65,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319205196,"sku":"E596.1","price":78.52,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319237964,"sku":"E596.1","price":74.39,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_0c182c84-8027-4684-b060-237f4fcf61e3.jpg?v=1766448264"},{"product_id":"round-flasks-duran-transparent-glass-e597-e597","title":"Round flasks,DURAN®, transparent glass, 1000 ml, NS 29\/32, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 1000 ml capacity and NS 29\/32 ground joint are laboratory round-bottom vessels for distillation, Soxhlet extraction and sample preparation. The transparent DURAN® glass body enables continuous visual control of larger reaction or distillation charges during heating, reflux and concentration. A standardised NS 29\/32 joint ensures compatibility with widely used condensers, still heads and adapters in environmental analysis and general laboratory glassware trains. Supplied as 1 pc, each flask weighs 0,320 kg and provides a full-litre working volume for scaled preparative and analytical work. These round flasks from manufacturer Lenz are suited to distillation and Soxhlet appliances as well as sampling and sample-preparation applications. The 1000 ml capacity supports higher-throughput or larger-batch procedures while retaining the handling characteristics of standard round-bottom laboratory glassware. Appropriate for research, teaching and routine laboratories that require DURAN® transparent round flasks with NS 29\/32 connectivity for distillation assemblies and related preparative operations.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 1000 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eWeight: 0,320 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319270732,"sku":"E597.1","price":44.7,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319303500,"sku":"E597.1","price":42.47,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319336268,"sku":"E597.1","price":40.23,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_23a0206d-b7b4-4bc5-9ef3-ee6e37dc59f1.jpg?v=1766448265"},{"product_id":"round-flasks-duran-transparent-glass-e598-e598","title":"Round flasks,DURAN®, transparent glass, 1000 ml, NS 45\/40, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 1000 ml capacity and NS 45\/40 ground joint are laboratory round-bottom vessels designed for distillation, Soxhlet work and sample preparation. Transparent DURAN® glass allows clear monitoring of larger liquid volumes during heating, reflux, extraction or concentration steps. The NS 45\/40 ground joint offers a wide, standardised interface to matching condensers, adapters and other laboratory glassware components used in environmental analysis and preparative setups. Each flask is supplied as 1 pc and has a weight of 0,310 kg, providing a practical single-unit pack for litre-scale laboratory tasks. These round flasks from manufacturer Lenz fit distillation and Soxhlet appliances as well as sampling and sample-preparation workflows. The 1000 ml working volume accommodates larger batch sizes while the round form supports even heat distribution with appropriate heating equipment. Suitable for research and routine laboratories that specify DURAN® transparent round flasks with NS 45\/40 joints for distillation trains and related preparative applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 1000 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eWeight: 0,310 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319369036,"sku":"E598.1","price":68.3,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319401804,"sku":"E598.1","price":64.89,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319434572,"sku":"E598.1","price":61.47,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_2a116b9c-35c3-468a-8e3b-7bbe94c0adbe.jpg?v=1766448265"},{"product_id":"round-flasks-duran-transparent-glass-e599-e599","title":"Round flasks,DURAN®, transparent glass, 2000 ml, NS 29\/32, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass with a 2000 ml working volume and NS 29\/32 standard ground joint support distillation, Soxhlet extraction and sample preparation in environmental and general laboratory workflows. The spherical body promotes even heating and efficient mixing of liquids under reflux or reduced pressure, while the clear borosilicate glass allows continuous visual monitoring of the contents. A precision-ground NS 29\/32 neck ensures reliable, leak-resistant connections to condensers, adapters and other jointed glassware. Supplied as a single piece weighing 0,55 kg, the flask is suited to routine preparative work where chemical resistance and thermal stability matter. These vessels from manufacturer Lenz fit standard heating mantles, oil baths and clamps used in distillation trains and sample-concentration setups. Transparent DURAN® construction helps operators track colour changes, boiling behaviour and phase separations without interrupting the process. Ideal for analytical and preparative laboratories that require robust round-bottom flasks with defined joint geometry for reproducible assembly of multi-piece glass apparatus.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 2000 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eWeight: 0,55 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319467340,"sku":"E599.1","price":71.95,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319500108,"sku":"E599.1","price":68.35,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319532876,"sku":"E599.1","price":64.76,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_7ec2389d-210b-4f82-b487-1ce511be9b1f.jpg?v=1766448266"},{"product_id":"round-flasks-duran-transparent-glass-e600-e600","title":"Round flasks,DURAN®, transparent glass, 2000 ml, NS 45\/40, 1 pc","description":"\u003cp\u003eRound flasks made from DURAN® transparent glass offer a 2000 ml capacity with a wide NS 45\/40 standard ground joint for secure coupling to large condensers, distillation heads and transfer adapters. The round-bottom design distributes heat evenly during boiling, reflux and concentration steps common in environmental analysis and sample preparation. Clear glass walls give an unobstructed view of reaction mixtures, solvent levels and precipitate formation throughout the process. Delivered as one unit with a mass of 0,50 kg, the flask integrates readily into existing jointed glassware trains. Manufactured by Lenz, it is intended for laboratories that need durable borosilicate vessels with a larger neck diameter for higher vapour throughput or easier charging of solids. The NS 45\/40 joint geometry supports stable, vacuum-compatible assemblies used in Soxhlet setups, rotary-evaporator receivers and multi-neck distillation configurations. Transparent DURAN® construction combines chemical resistance with optical clarity for everyday preparative and analytical work requiring a 2-litre round flask.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 2000 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eWeight: 0,50 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319565644,"sku":"E600.1","price":79.1,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319598412,"sku":"E600.1","price":75.15,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319631180,"sku":"E600.1","price":71.19,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_c6334973-cb86-439a-b33f-e5bcf2de3369.jpg?v=1766448267"},{"product_id":"round-flasks-duran-transparent-glass-e601-e601","title":"Round flasks,DURAN®, transparent glass, 4000 ml, NS 45\/40, 1 pc","description":"\u003cp\u003eRound flasks in DURAN® transparent glass provide a generous 4000 ml capacity and an NS 45\/40 standard ground joint for large-scale distillation, solvent recovery and sample preparation tasks. The spherical form promotes uniform heat transfer when used with heating mantles or baths, while the wide ground neck accommodates high-throughput condensers and large adapters. Transparent walls allow continuous observation of boiling, phase behaviour and fill level without dismantling the apparatus. Supplied as a single piece weighing 1,01 kg, the flask is dimensioned for preparative work where multi-litre volumes are routine. These vessels from manufacturer Lenz suit environmental laboratories and synthesis groups that assemble jointed glass trains for Soxhlet extraction, concentration and related thermal processes. The NS 45\/40 joint ensures a reproducible, tight fit to complementary DURAN® components. Clear borosilicate construction offers the chemical and thermal robustness expected of laboratory round-bottom flasks at the 4-litre scale, supporting reliable day-to-day operation in distillation and sample-handling workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Round flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® transparent glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 4000 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eWeight: 1,01 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319663948,"sku":"E601.1","price":207.5,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319696716,"sku":"E601.1","price":197.13,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319729484,"sku":"E601.1","price":186.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/HY49-01-1000Wx1000H_4c66e360-157d-445c-a8be-f0e3aaa64022.jpg?v=1766448267"},{"product_id":"pear-shape-flasks-duran-e602-e602","title":"Pear shape flasks, DURAN®, standard ground joint 14\/23, 10 ml, 1 pc","description":"\u003cp\u003ePear shape flasks in DURAN® glass with a 10 ml capacity and standard ground joint 14\/23 are compact vessels for small-scale distillation, concentration and sample handling. The pear-shaped body concentrates residual liquid into a narrow lower section, which aids recovery of small product volumes and simplifies transfer after evaporation or reflux. A precision 14\/23 ground joint connects cleanly to micro-scale condensers, adapters and receivers commonly used in analytical and preparative glassware sets. Offered as one unit weighing 0,02 kg, the flask is practical for method development, reference work and limited-sample workflows. Produced by Lenz, it belongs to the family of jointed laboratory flasks intended for distillation trains and related sample-preparation assemblies. DURAN® construction supplies the chemical resistance and clarity needed to monitor colour, boiling and phase changes at low volume. The combination of pear geometry, 10 ml working volume and NS 14\/23 joint makes this flask a focused choice for laboratories that routinely process millilitre-scale quantities in ground-glass apparatus.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Pear shape flask\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® glass\u003c\/li\u003e\n\u003cli\u003eCapacity: 10 ml\u003c\/li\u003e\n\u003cli\u003eGround joint: 14\/23\u003c\/li\u003e\n\u003cli\u003eWeight: 0,02 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319762252,"sku":"E602.1","price":13.45,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319795020,"sku":"E602.1","price":12.78,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319827788,"sku":"E602.1","price":12.11,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/E602-1000Wx1000H_3450b38f-13fd-403c-bf7f-1c1c7ad33b05.jpg?v=1766448268"},{"product_id":"pear-shape-flasks-duran-e603-e603","title":"Pear shape flasks, DURAN®, standard ground joint 14\/23, 25 ml, 1 pc","description":"\u003cp\u003ePear shape flasks DURAN® with standard ground joint 14\/23 and a 25 ml capacity are compact laboratory vessels designed for small-scale reaction, distillation and concentration work. The pear-shaped body concentrates residual volumes toward the base, supporting efficient recovery of limited sample amounts and clear observation of the liquid phase during heating or cooling. A precision standard ground joint 14\/23 enables secure connection to condensers, adapters, stoppers and other jointed glassware in modular assemblies. Manufactured from DURAN® glass by Lenz, the flask suits routine organic synthesis, sample preparation and teaching laboratories where reliable joint geometry and chemical resistance are required. Supplied as a single unit with a net weight of 0,030 kg, it integrates easily into existing ground-joint setups without additional adapters for NS 14\/23 interfaces. The pear profile is particularly practical when working with viscous residues or when complete drainage of the vessel is important. Ideal for preparative workflows, solvent exchange steps and small-volume evaporations that demand a stable, jointed glass flask of defined capacity.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/round-bottom-flasks\"\u003eRound-bottom flasks\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/beakers-and-flasks\"\u003eBeakers \u0026amp; flasks\u003c\/a\u003e. See also \u003ca href=\"\/en-be\/collections\/flat-bottom-flasks\"\u003eFlat-bottom flasks\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 1 pc\u003c\/li\u003e\n\u003cli\u003eProduct type: Pear shape flask\u003c\/li\u003e\n\u003cli\u003eGlass: DURAN®\u003c\/li\u003e\n\u003cli\u003eStandard ground joint: 14\/23\u003c\/li\u003e\n\u003cli\u003eCapacity: 25 ml\u003c\/li\u003e\n\u003cli\u003eWeight: 0,030 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181319860556,"sku":"E603.1","price":15.95,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181319893324,"sku":"E603.1","price":15.15,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181319926092,"sku":"E603.1","price":14.36,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/E602-1000Wx1000H_4ca13bbd-ce85-450b-a578-f7dc202f061e.jpg?v=1766448269"}],"url":"https:\/\/www.luminixhealth.com\/en-be\/collections\/round-bottom-flasks.oembed?page=4","provider":"Luminix Health","version":"1.0","type":"link"}