Description
Solid rubber stopper with an upper diameter of 45 mm, a lower diameter of 38 mm and a length of 35 mm is a conical laboratory stopper intended for closing flasks, bottles and comparable glassware. Fabricated from rubber as a solid, unbored plug, it delivers a dependable mechanical seal without a tubing bore. The taper from 45 mm at the top to 38 mm at the base over a 35 mm length matches vessel openings in this diameter class and supports routine sealing in research, quality-control and educational labs. Net weight is 0,052 kg. Offered as a single piece from manufacturer Witeg, the stopper is part of the classic rubber-stopper assortment used for simple vessel closure, short-term sample or reagent containment, and general laboratory organisation. Its solid gum construction and defined dimensions make it a practical choice wherever a robust, non-bored rubber seal is needed for everyday neck sealing and vessel handling.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Rubber
- Design: Solid (unbored)
- Upper diameter: 45 mm
- Lower diameter: 38 mm
- Length: 35 mm
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Questions about Rubber stoppers solid
What is this article?
Rubber stoppers solid 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.