Description
Silicone rubber stopper with top diameter 16,4 mm, bottom diameter 12,5 mm and height 20 mm is designed for secure sealing of laboratory glassware and plasticware. Made from silicone, the stopper offers flexibility together with good chemical resistance for use in chemical, biological and analytical laboratories. Its tapered shape allows a firm fit in corresponding neck sizes while remaining easy to insert and remove. Available from manufacturer Brand in packs of 10 pieces, these non-sterile stoppers support routine sealing of flasks, bottles and sample vessels. Controlled dimensions help ensure reliable performance with standard openings. Silicone material provides durability under normal laboratory conditions and repeated handling, making the stoppers suitable for temporary closures, reaction set-ups or short-term sample storage. Compact pack format and modest unit weight keep multiple stoppers conveniently at hand for daily laboratory sealing requirements without adding complexity to workflow.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Material: Silicone
- Top diameter: 16,4 mm
- Bottom diameter: 12,5 mm
- Height: 20 mm
- EAN: 4033378279651
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Questions about Stopper, silicone rubber, u.dia. 16,5 mm, l.dia. 12,5 mm, h. 20 mm
What is this article?
Stopper, silicone rubber, u.dia. 16,5 mm, l.dia. 12,5 mm, h. 20 mm is the article on this page. Luminix Health distributes Brand 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.