Description
Guko EPDM conical rubber seals for suction flasks create a secure, gas-tight connection between a filter and a suction flask during vacuum filtration. Manufactured from EPDM rubber in a conical form, the seal cushions both glass components against breakage while delivering the airtight interface required for reliable vacuum work. This size provides an upper diameter of 36 mm and a lower diameter of 22 mm, matching common laboratory filtration assemblies. The flexible rubber construction from manufacturer Duran/DWK Life Sciences reduces the risk of chipping or cracking at the joint under vacuum. Designed specifically for suction flasks, these conical gaskets support routine sealing and filtration tasks in analytical and preparative chemistry. Their conical profile ensures progressive seating that improves seal integrity as vacuum is applied. Supplied as a single piece with a net weight of 0,007 kg, the Guko seal is a practical laboratory consumable for connecting filter funnels to suction bottles. Applications centre on sealing and filtration workflows where dependable gas-tight performance between glassware is essential.
This article is part of Erlenmeyer flasks, in Beakers & flasks.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: EPDM rubber
- Form: Conical
- Upper diameter: 36 mm
- EAN: 4032051061835
- Technical Information Sheet:
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Questions about Rubber Conical Gasket Guko, made from EPDM, for filtering flasks
What is this article?
Rubber Conical Gasket Guko, made from EPDM, for filtering flasks is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Erlenmeyer flasks, inside Beakers & flasks, in Labware.
An Erlenmeyer, or conical, flask has a flat base and a narrowing wall so a liquid can be swirled. It is the ordinary culture and titration flask. A baffled wall is a different article, used when the swirl must turn the liquid over.
A beaker is an open working vessel: easy to pour, poor as a measure. An Erlenmeyer flask has a flat base and a conical wall so a liquid can be swirled without climbing out. A round-bottom flask is for heating under a condenser, because the heat meets a curved wall and the joint at the neck connects to the rest of the glassware. Borosilicate is the glass that survives the temperature change. These forms are listed under ISO laboratory glassware.
Which category should I open next?
The category is Beakers & flasks. The sub-category is Erlenmeyer flasks. The catalogue is Labware.
Shelves beside this one are Round-bottom flasks, Beakers, Reaction vessels & jacketed vessels, Flat-bottom flasks, Flasks (other) and Beaker & flask accessories.
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.