Description
GUKO rubber seal Ø 67 mm conical is a laboratory sealing gasket intended for filter nutsches. This size 6 component presents an outer diameter of 67 mm, an inner diameter of 48 mm and a height of 35 mm in a conical profile that seats reliably in standard filtration apparatus. The rubber construction provides the flexibility needed for a tight vacuum seal during solid-liquid separations typical of preparative and analytical work. Laboratories use these gaskets as replacement parts to restore airtight integrity on Büchner-type and related suction filters without altering existing glassware dimensions. Supplied by manufacturer ROBU - Stereon, the seals arrive ready for immediate installation in routine filtration setups. The conical geometry eases insertion and removal while maintaining consistent contact under vacuum. Packaged as 5 pieces, the item supports stock replenishment for teaching labs, quality-control suites and research facilities that rely on repeated filtration cycles. Precise dimensional matching to common filter-nutsche sizes helps minimise downtime and ensures reproducible filtration performance across successive batches.
This article belongs in Other instruments & spare parts.
Key features
- Pack size: 5 pc(s)
- Size: 6
- Outer diameter: 67 mm
- Inner diameter: 48 mm
- Height: 35 mm
- EAN: 4058072058333
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Questions about GUKO Rubber gasket for funnels, Ø 67 mm, conical
What is this article?
GUKO Rubber gasket for funnels, Ø 67 mm, conical is the article on this page. Luminix Health distributes ROBU - Stereon for laboratory use. It sits in Other instruments & spare parts, in Lab instruments.
Some instruments do not sit cleanly in one measuring principle, and every instrument eventually needs a spare: a lamp, a fuse, a seal, a knob. The spare has to be the part for that model. A near match is a different part. Calibration of the instrument, once it measures, belongs with EURAMET, BELAC and the BIPM.
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The category is Other instruments & spare parts. The catalogue is Lab instruments.
Shelves beside this one are Lab instruments.
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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.

