Description
Cork stopper with top diameter 30 mm, bottom diameter 26 mm and length 27 mm provides a tapered natural-cork closure for laboratory flasks, bottles and similar glassware. The conical shape allows controlled insertion into matching neck openings, while the compressible cork material helps form a secure everyday seal for storage and routine experimental handling. With a length of 27 mm, the stopper offers sufficient engagement in the neck without excessive bulk above the rim. Supplied as a pack of 100 pieces, it supports efficient replenishment of standard stopper stocks in teaching labs, research benches and analytical workplaces. These stoppers from manufacturer Witeg are produced to the stated upper and lower diameters so users can select the correct taper for their vessels. Natural cork remains a familiar option within the broader range of norm, rubber, silicone and cellulose stoppers when a traditional material is desired. Net weight is 0,004 kg per piece, keeping multipacks convenient to handle and store. Choose this 26 mm to 30 mm size when your glassware requires that taper for temporary vessel closure in chemical, biological or educational laboratory work.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Material: Cork
- Top diameter: 30 mm
- Bottom diameter: 26 mm
- Length: 27 mm
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Questions about Cork stopper Ø top 30mm Ø bottom 26mm length 27mm
What is this article?
Cork stopper Ø top 30mm Ø bottom 26mm length 27mm 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.