{"title":"Ground-joint glass stoppers","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 Ground-joint glass stoppers online\u003c\/h2\u003e\n\u003cp style=\"font-size: 1.0625rem; line-height: 1.6; color: #0e1a22; margin: 0 0 1.1em;\"\u003eThe Ground-joint glass stoppers shelf sits in Stoppers, caps \u0026amp; closures. 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 Ground-joint glass stoppers\u003c\/h2\u003e\n\u003cp style=\"margin: 0.95em 0 0.35em; font-size: 15px; font-weight: 600; color: #0e1a22;\"\u003eGround-joint glass stoppers\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 0.2em; line-height: 1;\"\u003e\u003ca href=\"\/en-be\/collections\/screw-caps-and-closures\" 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;\"\u003eScrew caps \u0026amp; closures\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/rubber-and-silicone-stoppers\" 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;\"\u003eRubber \u0026amp; silicone stoppers\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/lids-and-seals\" 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;\"\u003eLids \u0026amp; seals\u003c\/a\u003e\u003ca href=\"\/en-be\/collections\/closures\" 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;\"\u003eClosures (other)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0.95em 0 0.35em; font-size: 15px; font-weight: 600; color: #0e1a22;\"\u003eStoppers, caps \u0026amp; closures\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 0.2em; line-height: 1;\"\u003e\u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\" 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;\"\u003eStoppers, caps \u0026amp; closures\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 Ground-joint glass stoppers\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 2.6em;\"\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=\"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\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=\"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=\"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\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 Ground-joint glass stoppers\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 0.8em; font-size: 16px; line-height: 1.6; color: #ffffff;\"\u003eOrder Ground-joint glass stoppers 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":"standard-ground-glass-joint-stoppers-pe-akh6-akh6","title":"Standard ground glass joint stoppers, PE, NS 7\/16, insert blue, 10 unit(s)","description":"\u003cp\u003eStandard ground glass joint stoppers in polyethylene (PE) for NS 7\/16 joints provide a practical closure for laboratory glassware with standard taper connections. Each stopper is fitted with a blue insert for quick visual size identification at the bench, reducing mix-ups when several joint sizes are in use. The PE body offers a lightweight, chemically resistant seal for flasks, cylinders and other vessels equipped with NS 7\/16 ground joints during storage, transport or short-term holding of samples and reagents. Packaged as 10 pieces with a pack weight of 0,010 kg, the set supports multi-station laboratories and teaching environments that need spare stoppers on hand. These stoppers from manufacturer DWK Life Sciences belong to the standard taper stopper range used across chemical, analytical and life-science labs. Colour-coded blue inserts help staff match the correct NS 7\/16 size quickly, while the polyethylene construction is suitable for everyday closure tasks where glass stoppers are not required. Ideal for organising jointed glassware inventories and maintaining secure temporary seals.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Standard ground joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE (polyethylene)\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 7\/16\u003c\/li\u003e\n\u003cli\u003eInsert colour: Blue\u003c\/li\u003e\n\u003cli\u003eWeight: 0,010 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174494581068,"sku":"AKH6.1","price":13.45,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174494613836,"sku":"AKH6.1","price":12.78,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174494646604,"sku":"AKH6.1","price":12.11,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH6-1-01-1000Wx1000H_be81c5ed-efc3-42fa-8034-33a7aff44c34.jpg?v=1766444951"},{"product_id":"standard-ground-glass-joint-stoppers-pe-akh7-akh7","title":"Standard ground glass joint stoppers, PE, NS 10\/19, insert green, 10 unit(s)","description":"\u003cp\u003eStandard ground glass joint stoppers made of polyethylene (PE) for NS 10\/19 joints close laboratory glassware with matching standard taper connections. A green insert marks the NS 10\/19 size so operators can identify the correct stopper at a glance among mixed joint inventories. The PE construction gives a light, durable seal for flasks, adapters and other NS 10\/19 vessels during sample holding, reagent storage or intermediate process steps. Supplied in packs of 10 pieces weighing 0,020 kg, the set is convenient for busy analytical, synthesis and teaching laboratories that keep multiple joint sizes in rotation. These stoppers from manufacturer DWK Life Sciences form part of a colour-coded PE stopper series for standard ground joints. Green coding supports fast selection of NS 10\/19 closures, helping reduce joint mismatch and improve bench organisation. Suitable for routine laboratory use wherever a polyethylene stopper is preferred over glass for NS 10\/19 ground joint equipment.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Standard ground joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE (polyethylene)\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 10\/19\u003c\/li\u003e\n\u003cli\u003eInsert colour: Green\u003c\/li\u003e\n\u003cli\u003eWeight: 0,020 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174494679372,"sku":"AKH7.1","price":17.2,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174494712140,"sku":"AKH7.1","price":16.34,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174494744908,"sku":"AKH7.1","price":15.48,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH6-1000Wx1000H_354ac9ae-d34f-418f-bbb0-2b7f41330de8.jpg?v=1766444952"},{"product_id":"standard-ground-glass-joint-stoppers-pe-akh8-akh8","title":"Standard ground glass joint stoppers, PE, NS 12\/21, insert violet, 10 unit(s)","description":"\u003cp\u003eStandard ground glass joint stoppers in polyethylene (PE) for NS 12\/21 joints seal laboratory glassware fitted with corresponding standard taper joints. Each stopper carries a violet insert for immediate visual recognition of the NS 12\/21 size, which is helpful when several taper sizes share the same workspace. The PE material provides a lightweight, practical closure for flasks, receivers and other jointed vessels during temporary storage, transfer or standing periods. Delivered as 10 pieces with a pack weight of 0,030 kg, the pack suits laboratories that maintain spare stoppers for common NS sizes. These stoppers from manufacturer DWK Life Sciences belong to the PE standard ground joint stopper range used in chemical, pharmaceutical and educational labs. Violet colour coding streamlines selection of the correct NS 12\/21 stopper and supports orderly glassware management. Use them wherever a polyethylene standard taper stopper is appropriate for everyday sealing of NS 12\/21 laboratory glassware.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Standard ground joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE (polyethylene)\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 12\/21\u003c\/li\u003e\n\u003cli\u003eInsert colour: Violet\u003c\/li\u003e\n\u003cli\u003eWeight: 0,030 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174494777676,"sku":"AKH8.1","price":21.05,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174494810444,"sku":"AKH8.1","price":20.0,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174494843212,"sku":"AKH8.1","price":18.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH8-1-01-1000Wx1000H_4a4dc255-848d-4681-ac97-6b5451e7d935.jpg?v=1766444953"},{"product_id":"standard-ground-glass-joint-stoppers-pe-akh9-akh9","title":"Standard ground glass joint stoppers, PE, NS 14\/23, insert yellow, 10 unit(s)","description":"\u003cp\u003eStandard ground glass joint stoppers made of polyethylene (PE) are laboratory closures sized for NS 14\/23 ground taper joints. Each stopper carries a yellow insert so the joint size can be recognised at a glance when several taper formats are in use on the same bench. The PE body gives a light, durable seal on flasks, adapters and other glassware that rely on standard ground connections, supporting short-term closure against dust and evaporation during preparation, transfer or teaching work. Packs contain 10 pieces and weigh 0,030 kg, making them easy to stock at multiple stations. Colour coding of the insert reduces mix-ups between NS sizes in busy chemistry and life-science laboratories. These stoppers from manufacturer DWK Life Sciences fit everyday workflows that need reliable temporary sealing of ground joints without glass-on-glass stoppers. They sit in the stoppers-with-standard-taper category of labware consumables and are intended for routine vessel handling rather than specialised high-vacuum or long-term storage applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Standard ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eInsert colour: yellow\u003c\/li\u003e\n\u003cli\u003eWeight: 0,030 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174494875980,"sku":"AKH9.1","price":14.8,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174494908748,"sku":"AKH9.1","price":14.06,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174494941516,"sku":"AKH9.1","price":13.32,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH9-1-01-1000Wx1000H_e0131853-7c6f-47b6-8e02-a559b5d0256c.jpg?v=1766444953"},{"product_id":"standard-ground-glass-joint-stoppers-pe-akk0-akk0","title":"Standard ground glass joint stoppers, PE, NS 19\/26, insert blue, 10 unit(s)","description":"\u003cp\u003eStandard ground glass joint stoppers made of polyethylene (PE) close laboratory glassware fitted with NS 19\/26 standard taper joints. A blue insert marks the size clearly, helping staff select the correct stopper when several joint formats share the same workspace. The PE construction offers a lightweight, practical seal for flasks, receivers and adapters used in general chemistry, teaching and preparative routines. Each pack holds 10 pieces and has a weight of 0,080 kg, suitable for bench-side stocking and shared lab stores. Colour-coded inserts support faster setup and fewer mismatches during multi-step procedures. These stoppers from manufacturer DWK Life Sciences provide temporary closure against dust and short-term evaporation while vessels are handled or held between process steps. They belong to the standard range of stoppers with taper for everyday labware and are intended for routine sealing tasks rather than specialised vacuum or long-term storage duties.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Standard ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 19\/26\u003c\/li\u003e\n\u003cli\u003eInsert colour: blue\u003c\/li\u003e\n\u003cli\u003eWeight: 0,080 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174494974284,"sku":"AKK0.1","price":16.7,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174495007052,"sku":"AKK0.1","price":15.87,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174495039820,"sku":"AKK0.1","price":15.03,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH6-1-01-1000Wx1000H.jpg?v=1766444955"},{"product_id":"standard-ground-glass-joint-stoppers-pe-akk1-akk1","title":"Standard ground glass joint stoppers, PE, NS 24\/29, insert green, 10 unit(s)","description":"\u003cp\u003eStandard ground glass joint stoppers in polyethylene (PE) are sized for NS 24\/29 ground taper joints commonly found on medium laboratory flasks and adapters. Each unit includes a green insert for rapid visual identification of the joint size among mixed taper sets. The PE body delivers a light yet secure temporary seal, supporting vessel protection during preparation, transfer and teaching laboratory work. Packs of 10 pieces weigh 0,140 kg and are convenient for stocking multiple benches or shared stores. Colour coding of the insert helps reduce selection errors when several NS formats are in simultaneous use. These stoppers from manufacturer DWK Life Sciences suit general chemistry and life-science workflows that need reliable short-term closure of ground joints without glass stoppers. They form part of the stoppers-with-standard-taper labware range and are intended for routine handling rather than high-vacuum or extended storage applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Standard ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 24\/29\u003c\/li\u003e\n\u003cli\u003eInsert colour: green\u003c\/li\u003e\n\u003cli\u003eWeight: 0,140 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174495072588,"sku":"AKK1.1","price":19.8,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174495105356,"sku":"AKK1.1","price":18.81,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174495138124,"sku":"AKK1.1","price":17.82,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH6-1000Wx1000H.jpg?v=1766444954"},{"product_id":"standard-ground-glass-joint-stoppers-pe-akk2-akk2","title":"Standard ground glass joint stoppers, PE, NS 29\/32, insert red, 10 unit(s)","description":"\u003cp\u003eStandard ground glass joint stoppers manufactured from polyethylene (PE) fit NS 29\/32 standard taper joints on larger laboratory flasks and related glassware. A red insert identifies the joint size at a glance, which is useful when multiple taper formats are present on one bench. The PE construction provides a lightweight temporary seal against dust and short-term evaporation during preparative chemistry, teaching and general vessel handling. Each pack contains 10 pieces and weighs 0,150 kg, supporting practical restocking of workstations and central stores. Colour-coded inserts help avoid mix-ups between NS sizes in busy multi-user laboratories. These stoppers from manufacturer DWK Life Sciences are intended for everyday closure of ground joints where a durable plastic alternative to glass stoppers is preferred. They belong to the stoppers-with-standard-taper category of labware consumables and address routine sealing needs rather than specialised vacuum or long-term storage duties.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Standard ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eInsert colour: red\u003c\/li\u003e\n\u003cli\u003eWeight: 0,150 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56174495170892,"sku":"AKK2.1","price":23.8,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56174495203660,"sku":"AKK2.1","price":22.61,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56174495236428,"sku":"AKK2.1","price":21.42,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH6-1000Wx1000H_f4876079-674a-4ff4-9f25-00cf494c078d.jpg?v=1766444957"},{"product_id":"standard-ground-glass-joint-stoppers-pe-akk3-akk3","title":"Standard ground glass joint stoppers, PE, NS 34\/35, insert orange, 1 pc","description":"\u003cp\u003eStandard ground glass joint stoppers in PE are laboratory stoppers intended for vessels fitted with standard taper ground glass joints in size NS 34\/35. Each piece carries an orange insert that supports quick visual identification when several joint sizes are handled side by side. The product is offered as a single unit with a stated weight of 0,026 kg, making it straightforward to stock individual sizes as needed. These stoppers sit within the labware category of stoppers and clamps for laboratory glass, vessels and consumables, specifically stoppers with standard taper. Polyethylene construction provides a practical closure option for routine sealing of compatible ground joints in research, teaching and analytical environments. The NS 34\/35 taper matches common laboratory glassware dimensions, so the stopper seats directly on corresponding necks and openings without intermediate adapters. Colour coding via the orange insert helps keep multi-joint assemblies organised and reduces the risk of size mix-ups during setup or changeover. From manufacturer DWK Life Sciences, this PE standard ground glass joint stopper supports everyday glassware workflows where a simple, size-specific PE closure is required. Pack size is one piece per unit for flexible replenishment.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: Standard ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 34\/35\u003c\/li\u003e\n\u003cli\u003eInsert colour: orange\u003c\/li\u003e\n\u003cli\u003eWeight: 0,026 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174495269196,"sku":"AKK3.1","price":5.1,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174495301964,"sku":"AKK3.1","price":4.85,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174495334732,"sku":"AKK3.1","price":4.59,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH6-1000Wx1000H_d3dab8ff-a461-41fe-8f73-4c78584d3b93.jpg?v=1766444956"},{"product_id":"standard-ground-glass-joint-stoppers-pe-akk4-akk4","title":"Standard ground glass joint stoppers, PE, NS 45\/40, insert brown, 1 pc","description":"\u003cp\u003eStandard ground glass joint stoppers in PE are laboratory stoppers intended for vessels fitted with standard taper ground glass joints in size NS 45\/40. Each piece carries a brown insert that supports quick visual identification when several joint sizes are handled side by side. The product is offered as a single unit with a stated weight of 0,030 kg, making it straightforward to stock individual sizes as needed. These stoppers sit within the labware category of stoppers and clamps for laboratory glass, vessels and consumables, specifically stoppers with standard taper. Polyethylene construction provides a practical closure option for routine sealing of compatible ground joints in research, teaching and analytical environments. The NS 45\/40 taper matches common laboratory glassware dimensions, so the stopper seats directly on corresponding necks and openings without intermediate adapters. Colour coding via the brown insert helps keep multi-joint assemblies organised and reduces the risk of size mix-ups during setup or changeover. From manufacturer DWK Life Sciences, this PE standard ground glass joint stopper supports everyday glassware workflows where a simple, size-specific PE closure is required. Pack size is one piece per unit for flexible replenishment of larger joint sizes.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: Standard ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eInsert colour: brown\u003c\/li\u003e\n\u003cli\u003eWeight: 0,030 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56174495367500,"sku":"AKK4.1","price":5.75,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56174495400268,"sku":"AKK4.1","price":5.46,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56174495433036,"sku":"AKK4.1","price":5.18,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/AKH6-1000Wx1000H_4f9e2054-3f92-471e-b9ac-4dd61be97aa8.jpg?v=1766444956"},{"product_id":"rotilabo-luer-stoppers-ct69-ct69","title":"Rotilabo®-Luer-stoppers, PP, transparent, LLM for LLF, 10 unit(s)","description":"\u003cp\u003eRotilabo® Luer stoppers are transparent polypropylene closures for sealing Luer ports in laboratory liquid-handling and hose systems. This type presents a Luer lock male (LLM) form intended for Luer lock female (LLF) openings, allowing unused female lock connections on tubing, manifolds or accessories to be capped securely when not in use. Made from PP with a clear finish, the stoppers remain easy to locate and inspect on the bench. They are supplied as a pack of 10 pc(s) with a pack weight of 0,005 kg, convenient for keeping spare seals with other hose connectors and liquid-handling consumables. Typical use includes temporary isolation of sample or reagent lines, protection of open LLF ports during setup changes, and orderly storage of modular fluid paths in analytical, preparative and teaching laboratories. Within the Rotilabo® range from manufacturer ROTH SELECTION, these LLM-for-LLF stoppers provide a simple matching closure for standard female lock interfaces, supporting clean, controllable laboratory hose and accessory arrangements.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Luer stoppers\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eMaterial: PP\u003c\/li\u003e\n\u003cli\u003eColour: transparent\u003c\/li\u003e\n\u003cli\u003eConnection: LLM for LLF\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56180105118028,"sku":"CT69.1","price":12.4,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56180105150796,"sku":"CT69.1","price":11.78,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56180105183564,"sku":"CT69.1","price":11.16,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/CT69-1-01-1000Wx1000H_fe459623-7b38-4d5f-879d-a750d55302cf.jpg?v=1766447850"},{"product_id":"rotilabo-luer-stoppers-ct70-ct70","title":"Rotilabo®-Luer-stoppers, PP, transparent, LLF for LLM, 10 unit(s)","description":"\u003cp\u003eRotilabo®-Luer-stoppers are transparent polypropylene closures for sealing Luer connections in laboratory liquid-handling systems. Configured as LLF for LLM, they blank matching Luer ports on syringes, adapters, tubing lines and hose connector assemblies, helping limit spills, evaporation and unintended exposure during sample preparation, transfer or short-term hold. The clear PP body keeps the connection point visible while offering the chemical resistance expected for routine aqueous work and many common laboratory solvents. These stoppers sit naturally among hoses and accessories used in analytical, life-science and general chemistry workflows where standardised Luer interfaces must be closed quickly and reliably. Each pack contains 10 pc(s) and has a total weight of 0,032 kg, so the set is easy to store beside other liquid-handling consumables. Produced within the Rotilabo® range from manufacturer ROTH SELECTION, the stoppers support everyday organisation of Luer-based setups without adding bulk or complexity. They are a practical choice whenever open LLM ports need a simple, transparent PP seal that remains compatible with typical hose-connector and liquid-handling hardware on the bench.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Luer-stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: PP\u003c\/li\u003e\n\u003cli\u003eColour: Transparent\u003c\/li\u003e\n\u003cli\u003eConnection: LLF for LLM\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56180105216332,"sku":"CT70.1","price":16.05,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56180105249100,"sku":"CT70.1","price":15.25,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56180105281868,"sku":"CT70.1","price":14.45,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/CT70-1-01-1000Wx1000H_6e79d862-7df0-4546-ae3f-457e5f572a17.jpg?v=1766447849"},{"product_id":"rotilabo-luer-stoppers-ct71-ct71","title":"Rotilabo®-Luer-stoppers, PP, transparent, LM-Slip for LF, 10 unit(s)","description":"\u003cp\u003eRotilabo®-Luer-stoppers are transparent polypropylene seals intended for Luer slip interfaces in laboratory liquid-handling applications. Supplied in the LM-Slip for LF configuration, they close corresponding Luer ports on syringes, tubing adapters and hose connector systems, reducing the chance of leakage, contamination or accidental discharge while fluids are prepared, moved or held temporarily. Clear PP construction allows visual checks at the connection and provides the mechanical stability and chemical resistance needed for day-to-day aqueous media and many standard laboratory reagents. The stoppers complement hoses and accessories used across analytical, life-science and general chemistry benches where Luer slip fittings must be blanked cleanly and repeatedly. A pack holds 10 pc(s) and weighs 0,025 kg overall, making the set convenient to keep with other liquid-handling consumables. Offered in the Rotilabo® line from manufacturer ROTH SELECTION, these stoppers give a straightforward way to secure open LF ports without redesigning existing tubing layouts. They suit laboratories that rely on consistent Luer slip closures as part of organised hose-connector and liquid-handling workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Luer-stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: PP\u003c\/li\u003e\n\u003cli\u003eColour: Transparent\u003c\/li\u003e\n\u003cli\u003eConnection: LM-Slip for LF\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56180105347404,"sku":"CT71.1","price":16.25,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56180105380172,"sku":"CT71.1","price":15.44,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56180105412940,"sku":"CT71.1","price":14.63,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/CT71-1-01-1000Wx1000H_01d91265-1c7a-4b91-8e64-40cbcbe7d441.jpg?v=1766447850"},{"product_id":"glass-stoppers-solid-duran-e652-e652","title":"Glass-stoppers, solid, DURAN®, octagonal, standard ground joint 14\/23","description":"\u003cp\u003eSolid glass stoppers DURAN® are octagonal laboratory stoppers with standard ground joint 14\/23 for sealing flasks, bottles and other ground-joint glassware. The solid DURAN® construction provides a rigid, chemically resistant closure that mates with matching NS 14\/23 sockets used throughout European laboratory glassware systems. An octagonal head improves grip when inserting or removing the stopper during routine handling. These stoppers from manufacturer Lenz are packed as 10 pc(s) with a total weight of 0,250 kg, supporting multi-station benches and shared glassware stores. Solid ground-joint stoppers are applied wherever a reusable glass seal is preferred over plastic or rubber alternatives, including reaction flasks, storage vessels and apparatus assemblies that already use the 14\/23 joint size. DURAN® glass maintains dimensional stability of the ground surface under normal laboratory conditions. The pack of ten allows consistent replacement of worn or missing stoppers without mixing joint sizes. Suitable for teaching, research and quality-control laboratories that standardise on NS 14\/23 connections.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eType: Solid glass stoppers\u003c\/li\u003e\n\u003cli\u003eGlass: DURAN®\u003c\/li\u003e\n\u003cli\u003eHead shape: Octagonal\u003c\/li\u003e\n\u003cli\u003eJoint size: Standard ground joint 14\/23\u003c\/li\u003e\n\u003cli\u003eWeight: 0,250 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56181324153164,"sku":"E652.1","price":104.85,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56181324185932,"sku":"E652.1","price":99.61,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56181324218700,"sku":"E652.1","price":94.37,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/E652-1-1000Wx1000H_dbe05917-9199-486e-b0f8-ed0bbf5aca9e.jpg?v=1766448303"},{"product_id":"glass-stoppers-solid-duran-e653-e653","title":"Glass-stoppers, solid, DURAN®, octagonal, standard ground joint 19\/26","description":"\u003cp\u003eGlass-stoppers, solid, DURAN® are precision laboratory stoppers designed for reliable sealing of glassware with standard ground joints. These solid stoppers feature an octagonal head and a standard ground joint size of 19\/26, supporting secure closure of flasks, bottles and reaction vessels in everyday laboratory work. Manufactured from DURAN® borosilicate glass, they offer the chemical resistance and dimensional stability expected of quality lab glassware for routine handling of solvents, reagents and process samples. The octagonal form allows a firm grip when inserting or removing the stopper, which is useful during setup, sampling and cleaning cycles. Supplied in a practical pack of 10 pieces with a total weight of 0,360 kg, the set suits stock replenishment in teaching labs, analytical suites and research facilities. These stoppers from manufacturer Lenz fit standard taper joints of the stated size and integrate smoothly into existing glassware assemblies without special adapters. They belong to the stoppers-with-standard-taper category of laboratory glass consumables and support consistent joint sealing across repeated use. Ideal for general chemistry, preparative work and vessel storage where a solid DURAN® stopper with NS 19\/26 geometry is required.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Solid glass-stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® glass\u003c\/li\u003e\n\u003cli\u003eHead shape: Octagonal\u003c\/li\u003e\n\u003cli\u003eJoint size: Standard ground joint 19\/26\u003c\/li\u003e\n\u003cli\u003eWeight: 0,360 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56181324251468,"sku":"E653.1","price":145.65,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56181324284236,"sku":"E653.1","price":138.37,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56181324317004,"sku":"E653.1","price":131.09,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/E653-1-1000Wx1000H_59e24bbd-daee-4c0c-ada9-392b31c10005.jpg?v=1766448304"},{"product_id":"glass-stoppers-semi-hollow-duran-e654-e654","title":"Glass-stoppers, semi-hollow, DURAN®, octagonal, standard ground joint 29\/32","description":"\u003cp\u003eGlass-stoppers, semi-hollow, DURAN® provide a practical sealing solution for laboratory vessels equipped with larger standard ground joints. Each stopper combines a semi-hollow glass body with an octagonal head and a standard ground joint of 29\/32, matching common flask and bottle necks used in synthesis, distillation and sample storage. DURAN® glass construction delivers the clarity, thermal behaviour and chemical durability associated with professional laboratory glassware. The semi-hollow design reduces mass relative to fully solid stoppers of similar joint size while retaining a stable seal at the ground interface. An octagonal grip surface aids controlled insertion and removal during assembly changes or cleaning. Offered as a pack of 10 pieces weighing 0,716 kg in total, the product supports efficient restocking of shared glassware inventories. These stoppers from manufacturer Lenz are intended for standard taper joints of size 29\/32 and fit directly into compatible DURAN® and other ground-joint systems. They are classified among laboratory stoppers with standard taper and serve routine sealing tasks in research, quality control and teaching laboratories where a semi-hollow DURAN® stopper at NS 29\/32 is specified.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Semi-hollow glass-stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: DURAN® glass\u003c\/li\u003e\n\u003cli\u003eHead shape: Octagonal\u003c\/li\u003e\n\u003cli\u003eJoint size: Standard ground joint 29\/32\u003c\/li\u003e\n\u003cli\u003eWeight: 0,716 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56181324349772,"sku":"E654.1","price":165.55,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56181324382540,"sku":"E654.1","price":157.27,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56181324415308,"sku":"E654.1","price":149.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/E654-1-1000Wx1000H_e39d05fb-f724-4211-b8f6-4f828110ed3f.jpg?v=1766448305"},{"product_id":"replacement-stopper-type-pennyhead-exx7-exx7","title":"Replacement stopper type Pennyhead, for BOD-bottles, 12 unit(s)","description":"\u003cp\u003eReplacement stopper type Pennyhead is a dedicated spare stopper for BOD-bottles used in volumetric analysis and oxygen-bottle applications. The Pennyhead design provides a familiar handling form for laboratories that need reliable replacements when original stoppers are worn, damaged or missing from BOD bottle sets. Each pack contains 12 pc(s), a convenient quantity for maintaining spare stock beside active oxygen bottles and volumetric glassware. The pack weight is 0,470 kg, supporting straightforward storage and inventory control in busy analytical environments. These replacement stoppers are from manufacturer DWK Life Sciences and are specified for BOD-bottles within laboratory glass, vessels and consumables ranges. They suit water-quality, environmental and teaching laboratories that perform biochemical oxygen demand work and related dissolved-oxygen procedures. Keeping Pennyhead-type spares on hand helps minimise downtime when bottles must remain sealed during incubation or measurement sequences. This 12-piece pack integrates cleanly into existing BOD-bottle setups and volumetric analysis equipment inventories without changing established laboratory practice.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 12 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: Replacement stopper type Pennyhead\u003c\/li\u003e\n\u003cli\u003eWeight: 0,470 kg\u003c\/li\u003e\n\u003cli\u003eCompatible with: BOD-bottles\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"12 pc(s) \/ 1 piece","offer_id":56181597241676,"sku":"EXX7.1","price":94.45,"currency_code":"EUR","in_stock":true},{"title":"12 pc(s) \/ 6+ pieces","offer_id":56181597274444,"sku":"EXX7.1","price":89.73,"currency_code":"EUR","in_stock":true},{"title":"12 pc(s) \/ 24+ pieces","offer_id":56181597307212,"sku":"EXX7.1","price":85.01,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/EXX7-1-01-1000Wx1000H_6687ef46-13e3-4abb-b3c7-175040dbd959.jpg?v=1766476140"},{"product_id":"stopper-st-ground-joint-24-29-l-70-mm-h402-h402","title":"Stopper, st. ground joint 24\/29, L 70 mm, for desiccators, type Wertex","description":"\u003cp\u003eStopper with standard ground joint 24\/29 and length 70 mm is a laboratory accessory intended for desiccators of type Wertex. It provides a matching ground-joint closure for desiccator setups that specify the 24\/29 joint size, supporting routine drying, conditioning and moisture-controlled storage work in the laboratory. The stopper is supplied as 1 pc and has a unit weight of 0,090 kg, making it a compact spare or replacement part for compatible desiccator systems. In use, the standard ground joint geometry is seated in the corresponding neck or port so that the vessel can be closed in line with common desiccator practice. This item sits within the labware category for laboratory glass, vessels and consumables dedicated to desiccators, where reliable joint fit and straightforward handling matter for day-to-day workflows. The stopper is offered from manufacturer DWK Life Sciences as a Wertex-type component for laboratories that already operate or equip desiccators with 24\/29 ground joints and require a 70 mm stopper length for their configuration.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: Stopper for desiccators\u003c\/li\u003e\n\u003cli\u003eGround joint: 24\/29\u003c\/li\u003e\n\u003cli\u003eLength: 70 mm\u003c\/li\u003e\n\u003cli\u003eType: Wertex\u003c\/li\u003e\n\u003cli\u003eWeight: 0,090 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56181626634572,"sku":"H402.1","price":61.75,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56181626667340,"sku":"H402.1","price":58.66,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56181626700108,"sku":"H402.1","price":55.58,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/H402-1000Wx1000H_53eb3b5f-348c-463c-9778-b22a97f5fe67.jpg?v=1766476318"},{"product_id":"rotilabo-standard-ground-glass-joint-k864-k864","title":"Rotilabo®-standard ground glass joint, stoppers, PE, violet, conical joint 7\/16","description":"\u003cp\u003eRotilabo®-standard ground glass joint stopper is a polyethylene (PE) plug for sealing conical ground joints of size 7\/16 in laboratory glassware. The violet colour coding allows quick visual identification of joint size among mixed stopper sets on the bench. Manufactured from PE, the stopper offers a lightweight, chemically resistant closure for flasks, adapters and other NS-compatible vessels during storage, transport or short-term reaction work where a glass stopper is not required. Each pack contains 10 pc(s), giving a practical stock quantity for teaching labs, synthesis suites and general labware drawers. The Rotilabo®-standard ground glass joint stopper from manufacturer ROTH SELECTION fits the conical joint 7\/16 geometry and supports everyday sealing tasks without greasing when a soft polymer seat is preferred. Typical uses include temporary closure of round-bottom flasks, reagent bottles with ground necks and intermediate assemblies in organic and analytical workflows. Compact pack weight and colour-coded PE construction make these stoppers a convenient consumable for laboratories that standardise on standard ground joints.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Rotilabo®-standard ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE (polyethylene)\u003c\/li\u003e\n\u003cli\u003eColour: Violet\u003c\/li\u003e\n\u003cli\u003eConical joint: 7\/16\u003c\/li\u003e\n\u003cli\u003eWeight: 0,021 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56182114910540,"sku":"K864.1","price":15.25,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56182114943308,"sku":"K864.1","price":14.49,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56182114976076,"sku":"K864.1","price":13.73,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/K864-1000Wx1000H_226387bc-8bed-4d2a-8892-79585d8d6e8b.jpg?v=1766480153"},{"product_id":"rotilabo-standard-ground-glass-joint-k865-k865","title":"Rotilabo®-standard ground glass joint, stoppers, PE, blue, conical joint 10\/19","description":"\u003cp\u003eRotilabo®-standard ground glass joint stopper is a polyethylene (PE) plug sized for conical ground joints 10\/19, finished in blue for immediate size recognition in mixed labware kits. The PE body provides a light, resilient seal for flasks, receivers and other ground-neck vessels when a full glass stopper is unnecessary. Supplied in packs of 10 pc(s), the stoppers suit routine stocking in teaching laboratories, preparative chemistry and general wet-lab drawers. Colour coding reduces mix-ups between joint sizes during assembly and dismantling of apparatus. The Rotilabo®-standard ground glass joint stopper from manufacturer ROTH SELECTION matches the conical joint 10\/19 standard and is intended for temporary closure, storage and transport of glassware in organic, analytical and educational settings. Soft polymer contact can reduce the need for joint grease in many short-term applications while still seating firmly in the ground taper. Consistent blue marking and a multi-piece pack support efficient organisation of stoppers and clamps alongside other laboratory glass consumables.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Rotilabo®-standard ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE (polyethylene)\u003c\/li\u003e\n\u003cli\u003eColour: Blue\u003c\/li\u003e\n\u003cli\u003eConical joint: 10\/19\u003c\/li\u003e\n\u003cli\u003eWeight: 0,021 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56182115008844,"sku":"K865.1","price":15.25,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56182115041612,"sku":"K865.1","price":14.49,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56182115074380,"sku":"K865.1","price":13.73,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/K864-1000Wx1000H_27fa4c08-bdbf-492f-94a1-07a48986e0ce.jpg?v=1766480154"},{"product_id":"rotilabo-standard-ground-glass-joint-k866-k866","title":"Rotilabo®-standard ground glass joint, stoppers, PE, green, conical joint 12\/21","description":"\u003cp\u003eRotilabo®-standard ground glass joint stoppers in green polyethylene (PE) are conical joint closures sized 12\/21 for laboratory glassware. These PE plugs belong to the stoppers and clamps category and serve as practical seals for matching standard ground joints on flasks, adapters and related apparatus. Each pack contains 10 pc(s) and is finished in green for straightforward visual sorting of the 12\/21 size among mixed joint inventories. The set has a stated weight of 0,031 kg, supporting simple bench organisation and stock control. Manufactured in the Rotilabo® line from ROTH SELECTION, the stoppers are intended for routine laboratory sealing tasks where a lightweight PE alternative to glass is preferred. Colour-coded PE construction aligns with common labware workflows for vessels and consumables, helping keep conical-joint assemblies clearly identified during setup, use and storage. The product is supplied as a ready pack of green 12\/21 stoppers for general laboratory plug applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eColour: green\u003c\/li\u003e\n\u003cli\u003eConical joint: 12\/21\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56182115139916,"sku":"K866.1","price":15.25,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56182115172684,"sku":"K866.1","price":14.49,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56182115205452,"sku":"K866.1","price":13.73,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/K864-1000Wx1000H_25d020d3-91d8-42c9-88ea-02b6bcafc167.jpg?v=1766480154"},{"product_id":"rotilabo-standard-ground-glass-joint-k867-k867","title":"Rotilabo®-standard ground glass joint, stoppers, PE, brown, conical joint 14\/23","description":"\u003cp\u003eRotilabo®-standard ground glass joint stoppers in brown polyethylene (PE) are conical joint closures sized 14\/23 for laboratory glassware. These PE plugs fall under stoppers and clamps and provide a practical seal for matching standard ground joints on flasks, adapters and related apparatus. Each pack contains 10 pc(s) and is finished in brown for clear visual sorting of the 14\/23 size within mixed joint inventories. The set has a stated weight of 0,041 kg, aiding bench organisation and stock handling. Offered in the Rotilabo® range from ROTH SELECTION, the stoppers suit routine laboratory sealing where a lightweight PE option is appropriate. Colour-coded PE construction fits common labware workflows for vessels and consumables, supporting orderly identification of conical-joint assemblies during setup, use and storage. The product is supplied as a ready pack of brown 14\/23 stoppers for general laboratory plug applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eColour: brown\u003c\/li\u003e\n\u003cli\u003eConical joint: 14\/23\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56182115238220,"sku":"K867.1","price":15.25,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56182115270988,"sku":"K867.1","price":14.49,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56182115303756,"sku":"K867.1","price":13.73,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/K867-1-01-1000Wx1000H_7651332d-3c00-4a20-9635-113ebc8ff137.jpg?v=1766480156"},{"product_id":"rotilabo-standard-ground-glass-joint-k868-k868","title":"Rotilabo®-standard ground glass joint, stoppers, PE, yellow,conical joint 19\/26","description":"\u003cp\u003eRotilabo®-standard ground glass joint stoppers in yellow polyethylene (PE) are conical joint closures sized 19\/26 for laboratory glassware. These PE plugs are part of the stoppers and clamps range and act as practical seals for matching standard ground joints on flasks, adapters and related apparatus. Each pack contains 10 pc(s) and is finished in yellow for rapid visual sorting of the 19\/26 size among mixed joint inventories. The set has a stated weight of 0,082 kg, supporting straightforward bench organisation and stock control. Produced in the Rotilabo® line from ROTH SELECTION, the stoppers are intended for routine laboratory sealing tasks where a lightweight PE alternative is preferred. Colour-coded PE construction aligns with common labware workflows for vessels and consumables, helping keep conical-joint assemblies clearly identified during setup, use and storage. The product is supplied as a ready pack of yellow 19\/26 stoppers for general laboratory plug applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eColour: yellow\u003c\/li\u003e\n\u003cli\u003eConical joint: 19\/26\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56182115565900,"sku":"K868.1","price":18.35,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56182115598668,"sku":"K868.1","price":17.43,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56182115631436,"sku":"K868.1","price":16.52,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/K864-1000Wx1000H_122ed3d8-f53b-4edc-91a5-e93c4e3e7fd7.jpg?v=1766480155"},{"product_id":"rotilabo-standard-ground-glass-joint-k869-k869","title":"Rotilabo®-standard ground glass joint, stoppers, PE, red, conical joint 24\/29","description":"\u003cp\u003eRotilabo®-standard ground glass joint stoppers in red polyethylene (PE) are conical joint closures sized 24\/29 for laboratory glassware. These PE plugs belong to the stoppers and clamps category and serve as practical seals for matching standard ground joints on flasks, adapters and related apparatus. Each pack contains 10 pc(s) and is finished in red for clear visual sorting of the 24\/29 size within mixed joint inventories. The set has a stated weight of 0,144 kg, supporting simple bench organisation and stock handling. Supplied in the Rotilabo® range from ROTH SELECTION, the stoppers suit routine laboratory sealing where a lightweight PE option is appropriate. Colour-coded PE construction fits common labware workflows for vessels and consumables, supporting orderly identification of conical-joint assemblies during setup, use and storage. The product is offered as a ready pack of red 24\/29 stoppers for general laboratory plug applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eColour: red\u003c\/li\u003e\n\u003cli\u003eConical joint: 24\/29\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56182115664204,"sku":"K869.1","price":22.8,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56182115696972,"sku":"K869.1","price":21.66,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56182115729740,"sku":"K869.1","price":20.52,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/K869-1-01-1000Wx1000H_d09cbaa4-af2c-4899-92f8-b8bc0083dfbc.jpg?v=1766480156"},{"product_id":"rotilabo-standard-ground-glass-joint-k870-k870","title":"Rotilabo®-standard ground glass joint, stoppers, PE, black, conical joint 29\/32","description":"\u003cp\u003eRotilabo®-standard ground glass joint stoppers are black polyethylene (PE) laboratory plugs sized for the conical joint 29\/32. They close standard ground-glass necks on flasks, adapters and other jointed glassware used in synthesis, sample storage and routine analytical work. The PE body is lightweight yet robust enough for repeated bench handling, offering a practical alternative to glass stoppers where impact resistance and simple cleaning matter. Each pack contains 5 pc(s) and has a total weight of 0,104 kg, making it convenient to keep several spares at the workstation. The 29\/32 conical profile matches common NS joint dimensions, helping maintain a secure fit during mixing, short-term holding or transport of vessels. These stoppers sit in the Rotilabo® labware line from manufacturer ROTH SELECTION and belong to the plugs and clamps segment for laboratory glass, vessels and consumables. Black colouring aids quick visual identification among mixed joint sizes. Suitable for teaching laboratories, quality-control benches and general chemistry setups that rely on interchangeable ground joints, they support tidy, reliable sealing without adding unnecessary bulk to everyday glassware assemblies.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 5 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: Ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eColour: black\u003c\/li\u003e\n\u003cli\u003eConical joint: 29\/32\u003c\/li\u003e\n\u003cli\u003eWeight: 0,104 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"5 pc(s) \/ 1 piece","offer_id":56182115795276,"sku":"K870.1","price":14.25,"currency_code":"EUR","in_stock":true},{"title":"5 pc(s) \/ 6+ pieces","offer_id":56182115828044,"sku":"K870.1","price":13.54,"currency_code":"EUR","in_stock":true},{"title":"5 pc(s) \/ 24+ pieces","offer_id":56182115860812,"sku":"K870.1","price":12.83,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/K864-1000Wx1000H.jpg?v=1766480157"},{"product_id":"rotilabo-standard-ground-glass-joint-k871-k871","title":"Rotilabo®-standard ground glass joint, stoppers, PE, white, conical joint 34\/35","description":"\u003cp\u003eRotilabo®-standard ground glass joint stoppers are white polyethylene (PE) laboratory plugs specified for the conical joint 34\/35. They provide a dependable seal on larger standard ground-glass necks found on reaction flasks, receivers and related jointed apparatus in research and routine laboratory practice. The PE construction keeps the stopper light and resistant to everyday mechanical stress, which is useful when glass stoppers would be too fragile or heavy for frequent handling. Supplied as a pack of 5 pc(s) with a total weight of 0,134 kg, the set is easy to stock beside the glassware drawer. The 34\/35 conical geometry aligns with widely used NS joint sizes, supporting secure closure during storage, gentle agitation or short transfers. Part of the Rotilabo® range from manufacturer ROTH SELECTION, these white PE stoppers fall under laboratory plugs and clamps for glass vessels and consumables. The light colour helps distinguish them from darker joint sizes on a busy bench. They suit teaching labs, preparative chemistry and quality-control environments that depend on interchangeable ground joints and prefer durable plastic closures for day-to-day sealing tasks.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePack size: 5 pc(s)\u003c\/li\u003e\n\u003cli\u003eProduct type: Ground glass joint stopper\u003c\/li\u003e\n\u003cli\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eColour: white\u003c\/li\u003e\n\u003cli\u003eConical joint: 34\/35\u003c\/li\u003e\n\u003cli\u003eWeight: 0,134 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"5 pc(s) \/ 1 piece","offer_id":56182117204300,"sku":"K871.1","price":19.15,"currency_code":"EUR","in_stock":true},{"title":"5 pc(s) \/ 6+ pieces","offer_id":56182117237068,"sku":"K871.1","price":18.19,"currency_code":"EUR","in_stock":true},{"title":"5 pc(s) \/ 24+ pieces","offer_id":56182117269836,"sku":"K871.1","price":17.24,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/K864-1000Wx1000H_5e447dc3-c916-492f-9e22-220d94a8f991.jpg?v=1766480157"},{"product_id":"brown-glass-stoppers-duran-lk30-lk30","title":"Brown glass stoppers, DURAN®, semi-hollow, 24\/29, DIN 12252, octagonal","description":"\u003cp\u003eBrown glass stoppers, DURAN® are semi-hollow standard taper stoppers designed for reliable closure of laboratory glassware with ground joints. Sized 24\/29 and manufactured to DIN 12252, they feature an octagonal grip that supports secure handling when fitting or removing the stopper from flasks, bottles and reaction vessels. The brown DURAN® glass construction suits routine laboratory work where light-sensitive contents or standard joint systems are used and a durable, chemically resistant stopper is required. Each unit is supplied as a pack of 10 pc(s), giving convenient stock for teaching labs, analytical benches and preparative setups that rely on interchangeable ground-glass joints. Physical pack weight is 0,234 kg. These stoppers from manufacturer DWK Life Sciences integrate cleanly into existing DURAN® and DIN-compatible glassware fleets, helping maintain consistent joint geometry across multi-neck flasks, adapters and storage vessels. Ideal for general laboratory sealing tasks where octagonal, semi-hollow brown glass stoppers in the 24\/29 joint size are specified.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Brown glass stoppers, DURAN®\u003c\/li\u003e\n\u003cli\u003eJoint size: 24\/29\u003c\/li\u003e\n\u003cli\u003eDesign: Semi-hollow, octagonal\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12252\u003c\/li\u003e\n\u003cli\u003eWeight: 0,234 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184170086732,"sku":"LK30.1","price":154.0,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184170119500,"sku":"LK30.1","price":146.3,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184170152268,"sku":"LK30.1","price":138.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LK30-1-1000Wx1000H_221467d6-e91a-4f0f-a5c6-5a6c30ef50a0.jpg?v=1766491867"},{"product_id":"brown-glass-stoppers-duran-lk32-lk32","title":"Brown glass stoppers, DURAN®, semi-hollow, 29\/32, DIN 12252, octagonal","description":"\u003cp\u003eBrown glass stoppers, DURAN® provide semi-hollow standard taper closures for laboratory vessels fitted with 29\/32 ground joints. Conforming to DIN 12252 and finished with an octagonal head, they offer a firm grip for insertion and removal while maintaining the geometry expected of interchangeable laboratory glass joints. Brown DURAN® glass is suited to everyday sealing of flasks, bottles and apparatus where light protection or standard brown-glass aesthetics are preferred alongside chemical durability. The stoppers are packed as 10 pc(s) per unit, supporting efficient replenishment in teaching, quality-control and research laboratories that standardise on 29\/32 joints. Pack weight is 0,690 kg. Supplied from manufacturer DWK Life Sciences, these octagonal semi-hollow stoppers complement DURAN® glassware lines and other DIN-compatible assemblies, helping keep multi-piece setups sealed during storage, mixing or short-term holding of samples and reagents. Choose this 29\/32 format when matching larger standard taper necks on common laboratory glassware.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Brown glass stoppers, DURAN®\u003c\/li\u003e\n\u003cli\u003eJoint size: 29\/32\u003c\/li\u003e\n\u003cli\u003eDesign: Semi-hollow, octagonal\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12252\u003c\/li\u003e\n\u003cli\u003eWeight: 0,690 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184170479948,"sku":"LK32.1","price":153.0,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184170512716,"sku":"LK32.1","price":145.35,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184170545484,"sku":"LK32.1","price":137.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LK32-1-1000Wx1000H_fde1083a-8b5d-450f-991c-01314c009954.jpg?v=1766491867"},{"product_id":"brown-glass-stopper-duran-lk33-lk33","title":"Brown glass stopper, DURAN®, semi-hollow, 45\/40, DIN 12252, octagonal, 1 pc","description":"\u003cp\u003eBrown glass stopper, DURAN® is a semi-hollow standard taper stopper for large laboratory joints in size 45\/40. Produced to DIN 12252 with an octagonal grip, it enables controlled handling when closing wide-neck flasks, bottles and apparatus that use the 45\/40 ground joint. The brown DURAN® glass body is intended for routine laboratory sealing duties where a robust, chemically resistant stopper and reduced light transmission are advantageous. This item is supplied as 1 pc, matching replacement or single-vessel needs rather than bulk multi-packs, with a pack weight of 0,170 kg. From manufacturer DWK Life Sciences, the stopper aligns with DURAN® and other DIN-compatible glassware systems, supporting consistent joint fit across preparative and storage setups. It is appropriate for laboratories standardising on octagonal, semi-hollow brown glass stoppers at the 45\/40 taper for secure closure of larger ground-joint vessels during sample holding, reagent storage or apparatus assembly.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: Brown glass stopper, DURAN®\u003c\/li\u003e\n\u003cli\u003eJoint size: 45\/40\u003c\/li\u003e\n\u003cli\u003eDesign: Semi-hollow, octagonal\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12252\u003c\/li\u003e\n\u003cli\u003eWeight: 0,170 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWK Life Sciences","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184170611020,"sku":"LK33.1","price":27.85,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184170643788,"sku":"LK33.1","price":26.46,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184170676556,"sku":"LK33.1","price":25.07,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LK33-1-1000Wx1000H_05ce886c-a43d-478e-9698-489f19c280b8.jpg?v=1766491868"},{"product_id":"plastic-stoppers-pe-din-12254-ll77-ll77","title":"Plastic stoppers, PE, DIN 12254, standard ground joint 7\/16, octagonal","description":"\u003cp\u003ePlastic stoppers made of polyethylene (PE) to DIN 12254 are octagonal closures for standard ground joint 7\/16 laboratory glassware. The PE material offers a lightweight, durable alternative to glass stoppers for sealing flasks, tubes, and other vessels with matching taper joints during storage, transport, and everyday bench work. The octagonal head improves grip and makes insertion and removal straightforward, even when wearing gloves. Conforming to DIN 12254 ensures dimensional compatibility with common European ground-joint systems used in teaching, research, and quality-control laboratories. Supplied in a pack of 10 pieces from manufacturer Lenz, these stoppers support efficient equipping of multiple setups without frequent reordering. Unit weight is 0,013 kg, keeping the pack easy to handle and store with other stoppers and clamps. They are well suited to non-aggressive media and general laboratory applications where a reliable PE taper stopper is preferred over glass, and they integrate cleanly into standard ground-joint glassware workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: polyethylene (PE)\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eGround joint: 7\/16\u003c\/li\u003e\n\u003cli\u003eShape: octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,013 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184179130700,"sku":"LL77.1","price":7.8,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184179163468,"sku":"LL77.1","price":7.41,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184179196236,"sku":"LL77.1","price":7.02,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H_a63a3aad-b6dc-42a2-ae82-3b5c74b18720.jpg?v=1766491903"},{"product_id":"plastic-stoppers-pe-din-12254-ll78-ll78","title":"Plastic stoppers, PE, DIN 12254, standard ground joint 10\/19, octagonal","description":"\u003cp\u003ePlastic stoppers made of polyethylene (PE) according to DIN 12254 are octagonal closures intended for standard ground joint 10\/19 laboratory glassware. Manufactured from PE, they provide a robust, lightweight seal for flasks and vessels with matching taper joints during routine laboratory storage, handling, and transport. The octagonal design offers a secure grip for easy fitting and removal, including when gloves are worn. DIN 12254 compliance supports interchangeability with widely used European ground-joint systems in research, education, and industrial laboratories. Available as a pack of 10 pieces from manufacturer Lenz, the stoppers help keep multiple glassware setups sealed and ready for use. Pack weight is 0,195 kg, reflecting the larger 10\/19 joint size while remaining practical for shelf storage alongside other stoppers and clamps. These PE stoppers suit general laboratory applications with non-aggressive media where a plastic taper stopper is preferred, and they fit naturally into standard ground-joint glassware and consumable workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: polyethylene (PE)\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eGround joint: 10\/19\u003c\/li\u003e\n\u003cli\u003eShape: octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,195 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184179949900,"sku":"LL78.1","price":10.95,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184179982668,"sku":"LL78.1","price":10.4,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184180015436,"sku":"LL78.1","price":9.86,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H_e3739e52-dcf3-4109-b73b-1c5bb8d59cba.jpg?v=1766491903"},{"product_id":"plastic-stoppers-pe-din-12254-ll79-ll79","title":"Plastic stoppers, PE, DIN 12254, standard ground joint 12\/21, octagonal","description":"\u003cp\u003ePlastic stoppers, PE, DIN 12254 with standard ground joint 12\/21 are octagonal laboratory stoppers for secure closure of glass vessels and apparatus fitted with matching standard taper joints. Manufactured from polyethylene (PE), they provide a lightweight, durable sealing option for routine laboratory work where ease of handling and reliable fit are essential. The octagonal head offers a firm grip for insertion and removal, including when gloves are worn. Conforming to DIN 12254, the 12\/21 standard ground joint ensures dimensional compatibility with common flasks, bottles and reaction vessels used in chemistry, biology and analytical laboratories. These stoppers from manufacturer Lenz are supplied in a pack of 10 pieces, supporting consistent stocking for teaching, research and quality-control environments. With a weight of approximately 0,022 kg, each stopper remains easy to handle while helping limit evaporation and contamination of samples and reagents during everyday sealing tasks on standard taper glassware.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eStandard ground joint: 12\/21\u003c\/li\u003e\n\u003cli\u003eDesign: Octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,022 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184180965708,"sku":"LL79.1","price":11.65,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184180998476,"sku":"LL79.1","price":11.07,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184181031244,"sku":"LL79.1","price":10.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H_76074c6d-c15f-4277-86b6-8e37921bb60f.jpg?v=1766491904"},{"product_id":"plastic-stoppers-pe-din-12254-ll80-ll80","title":"Plastic stoppers, PE, DIN 12254, standard ground joint 14\/23, octagonal","description":"\u003cp\u003ePlastic stoppers, PE, DIN 12254 with standard ground joint 14\/23 are octagonal laboratory stoppers designed for reliable sealing of glassware with matching standard taper joints. Made from polyethylene (PE), they offer a practical, lightweight alternative for routine laboratory closures where chemical resistance and convenient handling matter. The octagonal head improves grip during insertion and removal, supporting safe, controlled use at the bench. Conforming to DIN 12254, the 14\/23 standard ground joint ensures compatibility with widely used flasks, bottles and apparatus in chemistry, biology and analytical workflows. These stoppers from manufacturer Lenz come in a pack of 10 pieces, making them suitable for teaching laboratories, research groups and quality-control settings that need consistent consumable supply. At approximately 0,001 kg each, they add minimal bulk while helping protect contents from evaporation and contamination. Ideal for everyday sealing tasks on standard taper joints, they integrate smoothly into general laboratory glassware setups.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eStandard ground joint: 14\/23\u003c\/li\u003e\n\u003cli\u003eDesign: Octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,001 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184181457228,"sku":"LL80.1","price":11.95,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184181489996,"sku":"LL80.1","price":11.35,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184181522764,"sku":"LL80.1","price":10.76,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H_cc5b9cda-7dae-4031-9ce6-f4c6ebadb2f9.jpg?v=1766491905"},{"product_id":"plastic-stoppers-pe-din-12254-ll81-ll81","title":"Plastic stoppers, PE, DIN 12254, standard ground joint 19\/26, octagonal","description":"\u003cp\u003ePlastic stoppers, PE, DIN 12254 with standard ground joint 19\/26 are octagonal laboratory stoppers for secure closure of vessels and apparatus fitted with corresponding standard taper joints. Produced from polyethylene (PE), they deliver a durable, lightweight sealing solution for day-to-day laboratory applications where glass stoppers may be less practical. The octagonal head design provides a secure grip, facilitating controlled opening and closing even under gloved conditions. Built to DIN 12254, the 19\/26 standard ground joint ensures dimensional fit with common laboratory flasks, bottles and reaction equipment. These stoppers from manufacturer Lenz are packed in units of 10 pieces, supporting efficient replenishment for teaching labs, research teams and analytical environments. With a weight of about 0,008 kg, each stopper remains easy to handle while helping reduce evaporation and contamination risks. They are well suited to general chemistry, biology and quality-control workflows that rely on standard taper glassware for sample and reagent containment.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eStandard ground joint: 19\/26\u003c\/li\u003e\n\u003cli\u003eDesign: Octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,008 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184182014284,"sku":"LL81.1","price":15.95,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184182047052,"sku":"LL81.1","price":15.15,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184182079820,"sku":"LL81.1","price":14.36,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H_a4ec9c04-26bb-445e-ace6-e24a6d00fc18.jpg?v=1766491905"},{"product_id":"plastic-stoppers-pe-din-12254-ll82-ll82","title":"Plastic stoppers, PE, DIN 12254, standard ground joint 24\/29 octagonal","description":"\u003cp\u003ePlastic stoppers, PE, DIN 12254 with standard ground joint 24\/29 are octagonal laboratory stoppers intended for reliable sealing of larger standard taper glassware. Manufactured from polyethylene (PE), they provide a lightweight and durable closure option for routine laboratory work where secure fit and simple handling are required. The octagonal head allows a firm grip for insertion and removal, supporting safe use during sample preparation and storage. Conforming to DIN 12254, the 24\/29 standard ground joint ensures compatibility with flasks, bottles and apparatus commonly found in chemistry, biology and analytical laboratories. These stoppers from manufacturer Lenz are supplied as a pack of 10 pieces, enabling consistent stocking for teaching, research and quality-control laboratories. Weighing approximately 0,004 kg each, they remain convenient to handle while helping limit evaporation and contamination of contents. Suitable for everyday sealing tasks on matching standard taper joints, they integrate readily into general laboratory glassware systems.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: PE\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eStandard ground joint: 24\/29\u003c\/li\u003e\n\u003cli\u003eDesign: Octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,004 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184182178124,"sku":"LL82.1","price":16.75,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184182210892,"sku":"LL82.1","price":15.91,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184182243660,"sku":"LL82.1","price":15.08,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H.jpg?v=1766491905"},{"product_id":"plastic-stoppers-pe-din-12254-ll83-ll83","title":"Plastic stoppers, PE, DIN 12254, standard ground joint 29\/32, octagonal","description":"\u003cp\u003ePlastic stoppers in polyethylene (PE) to DIN 12254 are designed for reliable closure of laboratory glassware with standard ground joints NS 29\/32. The octagonal head provides a secure grip for insertion and removal while the PE body forms a practical seal on matching taper joints in everyday lab use. These stoppers suit flasks, bottles and other vessels that carry a 29\/32 standard ground joint, supporting routine sample handling, storage and transfer work where a lightweight plastic closure is preferred over glass. Manufactured by Lenz, the components follow the DIN 12254 dimensional framework so they interchange with other NS 29\/32 glassware in the laboratory. Polyethylene offers chemical resistance appropriate for many aqueous and mild organic media and is easy to clean between uses. The pack contains 10 pieces, giving a convenient stock quantity for teaching labs, quality-control benches and general research setups. Each stopper weighs approximately 0,014 kg, keeping handling light during frequent opening and closing cycles. Categories include labware stoppers with standard taper, making this PE octagonal design a straightforward consumable for glassware fleets built around the 29\/32 joint size.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: PE (polyethylene)\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eHead shape: Octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,014 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56184182341964,"sku":"LL83.1","price":18.9,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56184182374732,"sku":"LL83.1","price":17.96,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56184182407500,"sku":"LL83.1","price":17.01,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H_a51d214d-bd22-41fb-9cda-7f9e92e3aa99.jpg?v=1766491906"},{"product_id":"plastic-stopper-pe-din-12254-ll84-ll84","title":"Plastic stopper, PE, DIN 12254, standard ground joint 34\/35 octagonal, 1 pc","description":"\u003cp\u003ePlastic stopper in polyethylene (PE) conforming to DIN 12254 closes laboratory glassware fitted with a standard ground joint NS 34\/35. Its octagonal head improves finger grip when seating or withdrawing the stopper from the taper, while the PE construction delivers a lightweight, durable seal for routine vessel closure. The single-unit format is ideal when only one NS 34\/35 stopper is required for a specific flask, bottle or reaction vessel in the laboratory inventory. From manufacturer Lenz, the part follows DIN 12254 geometry so it mates cleanly with matching 34\/35 ground joints across common lab glassware ranges. Polyethylene is suitable for many general laboratory media and is simple to rinse and reuse in day-to-day workflows. At about 0,014 kg the stopper remains easy to handle during repeated open–close cycles on the bench. It belongs to the stoppers-with-standard-taper family of labware consumables and supports teaching, analytical and preparative setups that standardise on the 34\/35 joint size. Use it wherever a PE alternative to glass stoppers is preferred for safety, weight or cost reasons without leaving the DIN 12254 dimensional system.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: PE (polyethylene)\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 34\/35\u003c\/li\u003e\n\u003cli\u003eHead shape: Octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,014 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184182571340,"sku":"LL84.1","price":4.65,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184182604108,"sku":"LL84.1","price":4.42,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184182636876,"sku":"LL84.1","price":4.19,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H_0ce04bfb-9945-4a7e-aa02-c41b033ffad1.jpg?v=1766491906"},{"product_id":"plastic-stopper-pe-din-12254-ll85-ll85","title":"Plastic stopper, PE, DIN 12254, standard ground joint 45\/40, octagonal","description":"\u003cp\u003ePlastic stopper made of polyethylene (PE) to DIN 12254 is intended for laboratory glassware with the larger standard ground joint NS 45\/40. The octagonal head gives a firm hold when inserting or extracting the stopper from the taper joint, and the PE body provides a practical, lightweight closure for flasks and vessels in this joint size. Supplied as a single piece, it fits replacement or dedicated use on one NS 45\/40 apparatus without overstocking. The design comes from manufacturer Lenz and adheres to DIN 12254 dimensions, ensuring compatibility with other 45\/40 ground-joint glassware used in synthesis, storage and sample preparation. Polyethylene suits many general laboratory applications and is straightforward to clean between runs. Approximate weight is 0,023 kg, remaining manageable even on larger necks. This stopper sits in the labware category of stoppers with standard taper and supports laboratories that maintain mixed joint sizes and need a PE option for the 45\/40 standard. It is a simple consumable choice when glass stoppers are less desirable for handling, breakage risk or weight on bigger vessels.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: PE (polyethylene)\u003c\/li\u003e\n\u003cli\u003eStandard: DIN 12254\u003c\/li\u003e\n\u003cli\u003eGround joint: NS 45\/40\u003c\/li\u003e\n\u003cli\u003eHead shape: Octagonal\u003c\/li\u003e\n\u003cli\u003eWeight: 0,023 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lenz","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184182702412,"sku":"LL85.1","price":5.3,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184182735180,"sku":"LL85.1","price":5.04,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184182767948,"sku":"LL85.1","price":4.77,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/LL77-1000Wx1000H_490aaa40-c906-48d3-9de6-a3db2753ac61.jpg?v=1766491907"},{"product_id":"rotilabo-ptfe-stopper-nx99-nx99","title":"Rotilabo®-PTFE stopper, NS 10\/19, 1 pc","description":"\u003cp\u003eRotilabo®-PTFE stopper NS 10\/19 is a laboratory stopper intended for standard taper joints on glassware and related apparatus. Made from PTFE, it offers a chemically inert sealing surface suited to routine wet chemistry, sample handling and assembly of conical-joint equipment. The NS 10\/19 size matches common small ground joints on flasks, adapters and receivers, supporting interchangeable setups without custom fittings. Each unit is supplied singly and weighs 0,006 kg, making it a compact choice for drawers, kits and multi-joint racks. Within the Rotilabo® line from manufacturer ROTH SELECTION, this stopper sits among stoppers and clamps used with laboratory glass, vessels and consumables. PTFE construction helps maintain clean contact faces where grease-free or low-contamination sealing is preferred, and the solid form is straightforward to rinse and reuse between experiments. Typical contexts include organic and analytical laboratories, teaching benches and quality-control stations that standardise on NS joints. The stopper closes NS 10\/19 sockets securely for temporary storage, reaction work-up or transfer steps, contributing to tidy, leak-resistant glassware trains in everyday laboratory practice.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: PTFE stopper with standard taper\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 10\/19\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eWeight: 0,006 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184381505868,"sku":"NX99.1","price":12.3,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184381538636,"sku":"NX99.1","price":11.69,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184381571404,"sku":"NX99.1","price":11.07,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/NX99-1000Wx1000H_bbf67b47-0471-4d35-9144-2bd6d4fe577d.jpg?v=1766492587"},{"product_id":"rotilabo-ptfe-stopper-ny00-ny00","title":"Rotilabo®-PTFE stopper, NS 14\/23, 1 pc","description":"\u003cp\u003eRotilabo®-PTFE stopper NS 14\/23 is a laboratory stopper for standard taper joints used throughout glass apparatus. Fabricated from PTFE, it provides an inert sealing interface for flasks, condensers, adapters and similar vessels in day-to-day laboratory work. The NS 14\/23 joint size is a widely adopted intermediate taper, ensuring broad compatibility with common European ground-glassware systems. The item is packed as 1 pc and has a weight of 0,014 kg, convenient for stocking multiple sizes side by side. As part of the Rotilabo® assortment from manufacturer ROTH SELECTION, it belongs with stoppers and clamps for laboratory glass, vessels and consumables. PTFE supports use where chemical resistance and easy cleaning matter, and the solid stopper body seats firmly in matching NS 14\/23 sockets for temporary closure or process steps that do not require greased joints. Applications span synthesis work-up, sample preparation, teaching laboratories and QC benches that rely on interchangeable NS connections. This Rotilabo®-PTFE stopper helps keep assemblies sealed and organised when NS 14\/23 ports must be closed between operations or during storage of intermediate solutions.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: PTFE stopper with standard taper\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 14\/23\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eWeight: 0,014 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184385143116,"sku":"NY00.1","price":13.95,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184385175884,"sku":"NY00.1","price":13.25,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184385208652,"sku":"NY00.1","price":12.56,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/NX99-1000Wx1000H_0ccd09d8-0a51-4853-a35b-06f7f9c4ecd2.jpg?v=1766492587"},{"product_id":"rotilabo-ptfe-stopper-ny01-ny01","title":"Rotilabo®-PTFE stopper, NS 19\/26, 1 pc","description":"\u003cp\u003eRotilabo®-PTFE stopper NS 19\/26 is a laboratory stopper designed for standard taper joints on medium-size glassware. Constructed from PTFE, it delivers a chemically resistant seal for flasks, receivers, adapters and other conical-joint components used in general laboratory practice. The NS 19\/26 size aligns with a frequent joint standard, so the stopper integrates cleanly into existing glassware sets without special adapters. Supplied as a single piece weighing 0,024 kg, it is practical for bench kits and shared glassware stores. Within the Rotilabo® range from manufacturer ROTH SELECTION, this article is grouped with stoppers and clamps for laboratory glass, vessels and consumables. PTFE favours grease-reduced sealing and straightforward rinsing after contact with reagents, supporting tidy workflows in organic, analytical and preparative settings. Typical use includes closing NS 19\/26 sockets during reaction pauses, solvent handling, teaching demonstrations and quality-control procedures. The solid PTFE form seats in the matching taper to limit vapour loss and contamination while apparatus stands idle or is moved between steps, offering a reliable everyday sealing option for standardised ground-joint systems.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: PTFE stopper with standard taper\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 19\/26\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eWeight: 0,024 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184388157772,"sku":"NY01.1","price":16.7,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184388190540,"sku":"NY01.1","price":15.87,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184388223308,"sku":"NY01.1","price":15.03,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/NX99-1000Wx1000H_21608ecc-f404-4ec7-8b70-f07ac34ae3ea.jpg?v=1766492588"},{"product_id":"rotilabo-ptfe-stopper-ny02-ny02","title":"Rotilabo®-PTFE stopper, NS 24\/29, 1 pc","description":"\u003cp\u003eRotilabo®-PTFE stopper NS 24\/29 is a laboratory stopper for larger standard taper joints on flasks and related glass apparatus. Made from PTFE, it supplies an inert sealing surface suitable for routine chemical work, sample containment and assembly of conical-joint equipment. The NS 24\/29 size corresponds to a common larger joint, ensuring fit with many round-bottom flasks, filter flasks and multi-neck vessels found in research and teaching laboratories. Each stopper is offered as 1 pc with a weight of 0,042 kg, appropriate for dedicated glassware stations and shared consumable stocks. Belonging to the Rotilabo® line from manufacturer ROTH SELECTION, it is categorised among stoppers and clamps for laboratory glass, vessels and consumables. PTFE construction supports chemically demanding environments where clean, easily rinsed seals are preferred over greased glass stoppers. In practice the stopper closes NS 24\/29 sockets during storage, transfer, work-up or idle periods between process steps. It suits organic synthesis, preparative chemistry, analytical sample handling and QC benches that standardise on interchangeable ground joints, providing a durable PTFE sealing option for medium-to-large laboratory glassware trains.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: PTFE stopper with standard taper\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 24\/29\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eWeight: 0,042 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184390648140,"sku":"NY02.1","price":21.05,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184390680908,"sku":"NY02.1","price":20.0,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184390713676,"sku":"NY02.1","price":18.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/NX99-1000Wx1000H_dae845ec-ac65-4a61-b718-941991bb1ff7.jpg?v=1766492588"},{"product_id":"rotilabo-ptfe-stopper-ny03-ny03","title":"Rotilabo®-PTFE stopper, NS 29\/32, 1 pc","description":"\u003cp\u003eRotilabo®-PTFE stopper NS 29\/32 is a laboratory stopper designed for vessels and glassware fitted with a standard taper joint of NS 29\/32. Manufactured from PTFE, it provides a chemically resistant, non-stick sealing interface suited to routine laboratory handling of solvents, reagents and process media where glass-to-glass or glass-to-plastic contact must be avoided. The stopper belongs to the stoppers-with-standard-taper range used across analytical, preparative and teaching laboratories for closing flasks, adapters and reaction vessels. Supplied as a single piece with a unit weight of 0,068 kg, it is a compact consumable for everyday labware sets. The Rotilabo® design from manufacturer ROTH SELECTION focuses on a clean PTFE body matched to the NS 29\/32 ground joint geometry, supporting secure seating without additional sealing aids when the joint is correctly prepared. Typical use includes temporary or longer-term closure of standard laboratory glassware during storage, transfer or intermediate process steps. The item is offered as one piece per pack for straightforward replenishment of stopper inventories in research, quality-control and production support laboratories.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: PTFE stopper with standard taper\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eWeight: 0,068 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184390746444,"sku":"NY03.1","price":24.4,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184390779212,"sku":"NY03.1","price":23.18,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184390811980,"sku":"NY03.1","price":21.96,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/NX99-1000Wx1000H_e13adb45-c0c3-4c73-add6-41d6757386ed.jpg?v=1766492589"},{"product_id":"rotilabo-ptfe-stopper-ny04-ny04","title":"Rotilabo®-PTFE stopper, NS 34\/35, 1 pc","description":"\u003cp\u003eRotilabo®-PTFE stopper NS 34\/35 is a PTFE laboratory stopper matched to standard taper joints of size NS 34\/35. It is intended for sealing flasks, reactors and other glassware that use this common ground-joint format in chemical, analytical and preparative work. The PTFE construction offers a chemically resistant, low-adhesion surface that helps maintain a clean seal interface and simplifies cleaning between uses. As part of the stoppers-with-standard-taper category, the component supports reliable closure of laboratory vessels during storage, sampling or intermediate process stages. Each unit is supplied singly and weighs 0,095 kg, making it a practical spare or replacement item for labware kits. The Rotilabo® stopper from manufacturer ROTH SELECTION is shaped for the NS 34\/35 geometry so that it seats correctly in compatible joints when glassware is properly prepared. Laboratories use such PTFE stoppers wherever metal-free, solvent-tolerant closures are preferred over cork or rubber alternatives. The single-piece pack size suits controlled stock management in research, teaching and quality-control environments.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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: PTFE stopper with standard taper\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 34\/35\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eWeight: 0,095 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"1 pc \/ 1 piece","offer_id":56184391074124,"sku":"NY04.1","price":28.9,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56184391106892,"sku":"NY04.1","price":27.46,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56184391139660,"sku":"NY04.1","price":26.01,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/NX99-1000Wx1000H.jpg?v=1766492590"},{"product_id":"hollow-stoppers-made-of-natural-rubber-tl43-tl43","title":"Hollow stoppers made of natural rubber, Rotilabo®, red, 19 x 14 x 12 mm","description":"\u003cp\u003eHollow stoppers made of natural rubber in the Rotilabo® range are compact red laboratory plugs for sealing small openings on glassware and related vessels. Each stopper is specified as 19 x 14 x 12 mm, providing a hollow natural-rubber form suited to tight laboratory closures where a small footprint is needed. The pack contains 10 pc(s) and has a total weight of 0,320 kg, convenient for stocking multiple identical plugs at the bench. Natural rubber hollow stoppers are standard consumables in laboratories for temporary sealing, sample protection and general vessel closure during routine work. Colour-coded red, they are easy to identify among other labware. These Rotilabo® hollow stoppers from manufacturer ROTH SELECTION belong to the plugs and stoppers segment of laboratory glass, vessels and consumables. Dimensional clarity supports correct selection for matching necks and ports before use. The multi-piece pack suits teaching labs, quality-control benches and research groups that consume small natural-rubber stoppers regularly. Use for laboratory sealing tasks that call for red hollow natural-rubber stoppers in this size.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: natural rubber\u003c\/li\u003e\n\u003cli\u003eType: hollow stoppers\u003c\/li\u003e\n\u003cli\u003eColour: red\u003c\/li\u003e\n\u003cli\u003eDimensions: 19 x 14 x 12 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56186398376268,"sku":"TL43.1","price":10.4,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56186398409036,"sku":"TL43.1","price":9.88,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56186398441804,"sku":"TL43.1","price":9.36,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/TL43-1-01-1000Wx1000H_c1a29fc6-8a34-47d6-8c27-1bf79d69f419.jpg?v=1766494888"},{"product_id":"hollow-stoppers-made-of-natural-rubber-tl44-tl44","title":"Hollow stoppers made of natural rubber, Rotilabo®, red, 21 x 16 x 14 mm","description":"\u003cp\u003eHollow stoppers made of natural rubber are laboratory plugs intended for closing flasks, bottles and other vessels during routine sample handling and storage. These Rotilabo® hollow stoppers are finished in red and sized 21 x 16 x 14 mm, giving a compact profile that suits common neck openings in glass and plastic labware. The hollow construction keeps the stopper light while still providing a snug, resilient seal against spills and evaporation in everyday bench work. Natural rubber offers the elasticity needed for repeated insertion and removal without cracking under normal laboratory conditions. Supplied as a pack of 10 pc(s) from manufacturer ROTH SELECTION, the set is convenient for equipping multiple workstations or replenishing shared consumable drawers. Each pack has a total weight of 0,040 kg, so it stores and ships easily alongside other small labware items. Typical uses include temporary closure of reaction vessels, reagent bottles and sample containers in teaching, quality-control and research laboratories. The clear dimensional specification supports consistent selection when matching stoppers to vessel necks across a workflow.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Hollow stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: Natural rubber\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eColour: Red\u003c\/li\u003e\n\u003cli\u003eDimensions: 21 x 16 x 14 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56186398474572,"sku":"TL44.1","price":9.2,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56186398507340,"sku":"TL44.1","price":8.74,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56186398540108,"sku":"TL44.1","price":8.28,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/TL43-1-01-1000Wx1000H_baacdea6-414a-45b3-a6a5-ce1972d68487.jpg?v=1766494888"},{"product_id":"hollow-stoppers-made-of-natural-rubber-tl45-tl45","title":"Hollow stoppers made of natural rubber, Rotilabo®, red, 27 x 19 x 17 mm","description":"\u003cp\u003eHollow stoppers made of natural rubber provide a flexible sealing option for laboratory glassware and plastic vessels used in sample preparation and short-term storage. These Rotilabo® hollow stoppers are red and measure 27 x 19 x 17 mm, offering a larger format suited to wider neck openings while remaining easy to handle at the bench. The hollow design reduces bulk yet retains the elastic fit needed to limit evaporation and contamination during routine procedures. Natural rubber delivers the resilience required for repeated fitting and removal in daily laboratory practice. Available as a pack of 10 pc(s) from manufacturer ROTH SELECTION, the stoppers are practical for stocking multiple stations or maintaining spare inventory. The pack weight is 0,011 kg, making the unit straightforward to store with other small consumables. Applications include temporary closure of flasks, bottles and intermediate sample containers in analytical, educational and research environments. Defined dimensions help laboratories standardise stopper selection across vessel types and workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Hollow stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: Natural rubber\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eColour: Red\u003c\/li\u003e\n\u003cli\u003eDimensions: 27 x 19 x 17 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56186398572876,"sku":"TL45.1","price":9.55,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56186398605644,"sku":"TL45.1","price":9.07,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56186398638412,"sku":"TL45.1","price":8.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/TL43-1-01-1000Wx1000H_38db6d12-eba9-4cd4-a723-ff10828277d5.jpg?v=1766494889"},{"product_id":"hollow-stoppers-made-of-silicone-rubber-tl46-tl46","title":"Hollow stoppers made of silicone rubber, Rotilabo®, 19 x 14 x 12 mm, 10 unit(s)","description":"\u003cp\u003eHollow stoppers made of silicone rubber are laboratory plugs designed for sealing vessels and containers during sample handling, storage and general bench work. These Rotilabo® hollow stoppers measure 19 x 14 x 12 mm, providing a compact size that fits smaller neck openings commonly found in analytical and teaching glassware. Silicone rubber combines flexibility with a smooth, resilient surface that supports repeated insertion and removal under normal laboratory conditions. The hollow construction keeps the stopper light while still forming a reliable closure against spills and evaporation. Supplied in a pack of 10 pc(s) from manufacturer ROTH SELECTION, the set is well suited to equipping several workstations or topping up shared consumable stocks. Pack weight is 0,030 kg, so the unit stores conveniently with other small labware items. Typical applications include temporary sealing of flasks, bottles and sample vessels in research, quality-control and educational laboratories. Clear dimensional data supports consistent matching of stoppers to vessel necks across standardised workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Hollow stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: Silicone rubber\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eDimensions: 19 x 14 x 12 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0,030 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56186398671180,"sku":"TL46.1","price":14.7,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56186398703948,"sku":"TL46.1","price":13.97,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56186398736716,"sku":"TL46.1","price":13.23,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/TL46-1-01-1000Wx1000H_fa80f69f-77f6-4fd2-8631-3a4f3bb754d3.jpg?v=1766494889"},{"product_id":"hollow-stoppers-made-of-silicone-rubber-tl47-tl47","title":"Hollow stoppers made of silicone rubber, Rotilabo®, 21 x 16 x 14 mm, 10 unit(s)","description":"\u003cp\u003eHollow stoppers made of silicone rubber serve as practical laboratory plugs for closing flasks, bottles and related vessels during routine handling and short-term storage. These Rotilabo® hollow stoppers are sized 21 x 16 x 14 mm, offering a mid-range format that suits many standard neck openings in glass and plastic labware. Silicone rubber provides elastic recovery and a smooth sealing surface suited to repeated use in everyday laboratory environments. The hollow design reduces mass while maintaining a secure fit that helps limit evaporation and accidental spills at the bench. Delivered as a pack of 10 pc(s) from manufacturer ROTH SELECTION, the stoppers are convenient for multi-station setups or regular replenishment of consumable drawers. The pack weighs 0,038 kg and stores easily alongside other small accessories. Common uses include temporary closure of reaction vessels, reagent bottles and sample containers in research, teaching and quality-control laboratories. Specified dimensions support reliable selection when aligning stoppers with vessel necks across a laboratory workflow.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Hollow stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: Silicone rubber\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eDimensions: 21 x 16 x 14 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0,038 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56186398769484,"sku":"TL47.1","price":15.95,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56186398802252,"sku":"TL47.1","price":15.15,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56186398835020,"sku":"TL47.1","price":14.36,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/TL46-1-01-1000Wx1000H_91df58a9-0607-412e-9868-775a9227539f.jpg?v=1766494890"},{"product_id":"hollow-stoppers-made-of-silicone-rubber-tl48-tl48","title":"Hollow stoppers made of silicone rubber, Rotilabo®, 27 x 19 x 17 mm, 10 unit(s)","description":"\u003cp\u003eHollow stoppers made of silicone rubber (Rotilabo®) are laboratory plugs intended for sealing flasks, tubes and other vessels in everyday lab work. These hollow silicone stoppers measure 27 x 19 x 17 mm and offer a flexible, resilient fit that supports reliable closure of glassware and related equipment. Silicone rubber is widely chosen in laboratory environments for its elasticity and chemical resistance profile relative to many common solvents and reagents used at the bench. Supplied as a pack of 10 pc(s) from manufacturer ROTH SELECTION, the set is practical for stocking multiple workstations or shared preparation areas. The hollow design reduces material bulk while maintaining a secure seal, making the stoppers suitable for temporary or routine closures during sample handling, storage between steps, and general vessel protection. With a pack weight of 0,011 kg, the unit is light and easy to store among other labware consumables. These Rotilabo® hollow stoppers fit the stoppers-and-clamps category of laboratory glass, vessels and consumables and support clean, repeatable sealing practice without metal or rigid plastic components. They are a straightforward choice for teaching labs, research groups and routine analytical workflows that require soft, form-fitting plugs in a defined size.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eProduct type: Hollow stoppers\u003c\/li\u003e\n\u003cli\u003eMaterial: Silicone rubber\u003c\/li\u003e\n\u003cli\u003eBrand: Rotilabo®\u003c\/li\u003e\n\u003cli\u003eDimensions: 27 x 19 x 17 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0,011 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"10 pc(s) \/ 1 piece","offer_id":56186398867788,"sku":"TL48.1","price":16.9,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 6+ pieces","offer_id":56186398900556,"sku":"TL48.1","price":16.06,"currency_code":"EUR","in_stock":true},{"title":"10 pc(s) \/ 24+ pieces","offer_id":56186398933324,"sku":"TL48.1","price":15.21,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/TL46-1-01-1000Wx1000H_b25c9b04-7689-4f9e-b0aa-6aceb1e9ee9d.jpg?v=1766494889"},{"product_id":"stopper-with-conical-ground-joint-pp-tt21-tt21","title":"Stopper with conical ground joint, PP, NS 29\/32, connections (2x) Ø 8 mm","description":"\u003cp\u003eStopper with conical ground joint, PP is a polypropylene closure designed for conical ground-joint glassware at NS 29\/32. It features two connections of Ø 8 mm, enabling flexible tubing or accessory attachment while sealing the joint. The PP body offers a lightweight, chemically resistant alternative for many aqueous and selected solvent applications in distillation, extraction and general apparatus setups. Pack size is 1 pc with a weight of 0,021 kg, making it straightforward to stock as a spare or dedicated component. Suitable for laboratory glass assemblies that rely on standard ground joints, this stopper supports secure closure and controlled connection points without glass-to-glass stoppers when plastic is preferred. From manufacturer Kartell, the piece aligns with components used in distillation and extraction trains as well as broader ground-joint systems. Use it where NS 29\/32 compatibility, dual Ø 8 mm ports and polypropylene construction simplify setup, reduce breakage risk and keep apparatus modular for teaching, preparative and analytical workflows.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-be\/collections\/ground-joint-glass-stoppers\"\u003eGround-joint glass stoppers\u003c\/a\u003e, in \u003ca href=\"\/en-be\/collections\/stoppers-caps-and-closures\"\u003eStoppers, caps \u0026amp; closures\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\u003eMaterial: PP\u003c\/li\u003e\n\u003cli\u003eJoint size: NS 29\/32\u003c\/li\u003e\n\u003cli\u003eConnections: 2x Ø 8 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0,021 kg\u003c\/li\u003e\n\u003cli\u003eProduct type: Stopper with conical ground joint\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kartell","offers":[{"title":"1 pc \/ 1 piece","offer_id":56186409156940,"sku":"TT21.1","price":12.55,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 6+ pieces","offer_id":56186409189708,"sku":"TT21.1","price":11.92,"currency_code":"EUR","in_stock":true},{"title":"1 pc \/ 24+ pieces","offer_id":56186409222476,"sku":"TT21.1","price":11.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/TT21-1000Wx1000H_335bd744-23b0-4545-b8ef-f568be496b5a.jpg?v=1766494953"}],"url":"https:\/\/www.luminixhealth.com\/en-be\/collections\/ground-joint-glass-stoppers.oembed","provider":"Luminix Health","version":"1.0","type":"link"}