Beschrijving
GUKO rubber seal 69 mm is a conical rubber gasket designed for sealing laboratory filtration assemblies and related glassware. It provides an upper diameter of 78 mm, a lower diameter of 58 mm and a height of 35 mm, creating a tapered profile that seats reliably between funnel and flask components of matching size. The item is supplied as 1 pc and weighs 0,049 kg net. These specifications support consistent mounting and help maintain an effective seal during vacuum or gravity filtration procedures. Users employ the seal as a nutsche or Büchner funnel gasket and as a general rubber sleeve for glass joints in everyday laboratory practice. The flexible rubber body tolerates repeated assembly while preserving dimensional stability. Sourced from manufacturer Witeg within the established GUKO range, this larger size complements standard glassware sets that require a broader conical interface. Defined diameters and height make the part straightforward to match to existing apparatus.
This article belongs on Cutting & sealing tools, in Tools & accessories.
Key features
- Pack size: 1 pc
- Product type: Conical rubber seal
- Upper diameter: 78 mm
- Lower diameter: 58 mm
- Height: 35 mm
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Questions about Guko, rubber gasket, conical, o.d. size
What is this article?
Guko, rubber gasket, conical, o.d. size is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Cutting & sealing tools, inside Tools & accessories, in Labmateriaal.
Cutting and sealing tools score glass tubing, trim a stopper, or close a bag and a film. A glass cut that is only scored, not pulled, shatters instead of breaking clean.
The small tools of the bench are what the hand actually holds: a spatula for a powder, forceps for an object that must stay clean, a brush for a narrow neck, a desiccator when a dried sample must not take up water again. None of these reads a measurement. They keep the measurement possible. The apparatus around them is listed under ISO laboratory apparatus.
Which category should I open next?
The category is Tools & accessories. The sub-category is Cutting & sealing tools. The catalogue is Labmateriaal.
Shelves beside this one are Spatulas & spoons, Other lab tools & accessories, Lab furniture, trolleys & storage, Tweezers & forceps, Scissors, scalpels & dissecting instruments, Weighing boats, dishes & paper, Desiccators & desiccant, Grease, boiling stones & sealants, Timers, stopwatches & calculators, Stationery, books & lab notebooks, Brushes & cleaning tools, Stirring rods, spreaders & glass tools and Gas handling & burners 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.