Description
Silicone stopper 14,5 - 10,5 mm Ø, 20 mm h is a tapered laboratory stopper intended for sealing glassware, flasks and bottles in scientific and medical settings. Produced from silicone material, it combines flexibility with reliable sealing performance for routine laboratory work. The stopper features an upper diameter of 14,5 mm that tapers to a lower diameter of 10,5 mm, with an overall height of 20 mm, allowing secure insertion into matching neck openings. Supplied as a single piece, this item belongs to the silicone stopper range used alongside cork, rubber and cellulose stoppers for temporary or reusable closures. The silicone construction supports easy handling, insertion and removal while maintaining a tight fit during sample handling, storage or basic experimental procedures. Offered by manufacturer Hecht, the stopper suits general laboratory environments where consistent dimensional accuracy and material compatibility are required. Its tapered profile accommodates standard vessel necks within the stated diameter range, making it a practical choice for everyday sealing tasks in research, teaching or quality-control laboratories that rely on durable silicone closures.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Silicone
- Upper diameter: 14,5 mm
- Lower diameter: 10,5 mm
- Height: 20 mm
- Shape: Tapered
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Questions about Silicone stoppers mm 14,5 - 10,5 Ø 20 h
What is this article?
Silicone stoppers mm 14,5 - 10,5 Ø 20 h is the article on this page. Luminix Health distributes Hecht 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.