Description
DURAN® Filter funnel, conical shape is a laboratory glassware item made from borosilicate glass 3.3 for transferring and filtering liquids and solids. With a nominal volume of 25 ml and porosity 3 sintered base, it permits filtration without additional filter paper and connects to a suction flask via a conical rubber seal (GUKO). The conical form accommodates a relatively large charge of liquid or solid and directs it through a narrowed outlet into vessels with smaller openings, reducing spillage. A permanently fired white print provides durable identification. This filter funnel from manufacturer Duran/DWK Life Sciences is suited to routine filtration of liquids under vacuum or gravity conditions in qualitative and preparative work. The integrated glass sinter serves as the filter medium, combining chemical resistance of borosilicate glass 3.3 with practical handling for laboratory separations. Supplied as a single piece, it supports efficient media transfer and filtration while helping prevent substance loss during pouring and vacuum-assisted steps.
This article is part of Büchner & filter funnels, in Funnels.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Product type: Filter funnel, conical shape
- Material: Borosilicate glass 3.3
- Nominal volume: 25 ml
- EAN: 4032051036475
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Questions about DURAN® Filter Funnel conical shape
What is this article?
DURAN® Filter Funnel conical shape is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Büchner & filter funnels, inside Funnels, in Labware.
A Büchner funnel is a perforated porcelain or plastic plate used with a rubber cone and vacuum to pull liquid through a filter paper. A filter funnel is the glass cone that holds a folded paper under gravity. The plate diameter decides the paper size.
A funnel guides a liquid or a powder into a narrower mouth. A filter funnel holds a paper. A Büchner funnel is the flat perforated plate used with vacuum. A separating funnel has a stopcock so two liquid layers can be run off one at a time. A dropping funnel adds a reagent slowly into a reaction. The bore and the stopcock are the parts that matter. This glassware is listed under ISO laboratory glassware.
Which category should I open next?
The category is Funnels. The sub-category is Büchner & filter funnels. The catalogue is Labware.
Shelves beside this one are Funnels (plastic, glass & steel), Dropping funnels, Separating funnels and Powder funnels.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

