Description
Filter funnel, 250 ml, porosity 3 is a laboratory filtration vessel made from borosilicate 3.3 glass for vacuum-assisted solid-liquid separations. It incorporates a permanently fused VitraPOR® sintered filter plate of 80 mm diameter with porosity grade 3 and a working height of 65 mm above the filter plate. The 250 ml capacity provides practical volume for handling slurries and precipitates during routine sample work-up. Porosity 3 delivers a balanced flow rate and particle retention suited to many general laboratory filtrations in synthesis, analytical chemistry and quality-control workflows. The chemical and thermal resistance of borosilicate 3.3 supports repeated use with common reagents and cleaning procedures. Manufactured by ROBU - Stereon, this Büchner-style filter funnel integrates the VitraPOR® disc directly into the glass body, eliminating loose filter media in numerous protocols and ensuring uniform pore distribution. Supplied as a single piece, it connects readily to standard vacuum flasks and adapters used across research, industrial and teaching laboratories for reliable solid collection and filtrate recovery.
This article is part of Büchner & filter funnels, in Funnels.
Key features
- Pack size: 1 pc
- Capacity: 250 ml
- Material: Borosilicate 3.3
- Filter plate: VitraPOR® Ø 80 mm
- Porosity: 3
- Height above filter plate: 65 mm
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Questions about Filter Funnel, 250 ml, Por. 3
What is this article?
Filter Funnel, 250 ml, Por. 3 is the article on this page. Luminix Health distributes ROBU - Stereon 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.
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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.