Description
Solid rubber stopper with upper diameter 92 mm, lower diameter 78 mm and length 50 mm is a tapered laboratory closure for flasks, bottles and other vessels that need a friction-fit seal. Made entirely of rubber as a solid, non-bored plug, it offers a stable mechanical fit for general laboratory sealing where a conical rubber stopper is required. The profile tapers from 92 mm at the top to 78 mm at the base over a length of 50 mm, supporting secure seating in matching openings and adequate engagement depth. Net weight is 0,312 kg per piece. This stopper from manufacturer Witeg is intended for routine closure tasks in analytical, teaching and industrial laboratories, including temporary sealing of wide-neck containers. It belongs to the standard rubber-stopper range used alongside cork, silicone and cellulose alternatives when a solid gum stopper of these dimensions is specified. Supplied as a single piece for straightforward stock and replacement.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Rubber
- Upper diameter: 92 mm
- Lower diameter: 78 mm
- Length: 50 mm
- Type: Solid rubber stopper
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Questions about Plug O-Ø 92mm U-Ø 78mm L: 50mm
What is this article?
Plug O-Ø 92mm U-Ø 78mm L: 50mm 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.