Description
Cork stopper with top diameter 17 mm, bottom diameter 14 mm and length 22 mm provides a tapered natural-cork closure for laboratory flasks, bottles and similar vessels. The conical shape supports a secure friction fit in appropriately sized necks, helping reduce evaporation and airborne contamination during short-term storage, sampling or preparatory work. Natural cork remains a classic, compressible sealing medium that can be seated and withdrawn by hand without specialised tools. Offered in packs of 200 pieces from manufacturer Witeg, the stoppers are suitable for educational labs, routine analytical benches and general chemical or life-science applications where a simple cork seal is desired. Individual net weight is 0,001 kg, with origin in Portugal. Clearly specified geometry—17 mm at the top, 14 mm at the bottom and 22 mm in length—enables reliable matching to vessel openings. Use these stoppers as temporary, reusable closures on glassware, reagent containers and sample bottles whenever a natural cork option is preferred over rubber or silicone alternatives.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 200 pc(s)
- Material: Cork
- Top diameter: 17 mm
- Bottom diameter: 14 mm
- Length: 22 mm
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Questions about Cork stopper Ø top 17mm Ø bottom 14mm length 22mm
What is this article?
Cork stopper Ø top 17mm Ø bottom 14mm length 22mm is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Ground-joint glass stoppers, Lids & seals and Closures (other).
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.