Description
Red rubber stopper with top diameter 22 mm, bottom diameter 17 mm and height 25 mm is a tapered laboratory stopper produced from natural rubber. The conical form ensures a reliable friction fit for larger flasks, reagent bottles and other laboratory glassware whose neck diameters correspond to this range. An upper outer diameter of 22 mm tapers to 17 mm at the base over a height of 25 mm, giving both a firm seal and straightforward insertion or removal by hand. Packaged in units of 25 pieces, these solid stoppers come from manufacturer Brand and address routine sealing requirements in chemical, biochemical and teaching laboratories. Natural rubber supplies the elasticity required for repeated handling together with suitable resistance toward many aqueous media and mild reagents. The characteristic red colour facilitates quick visual identification and inventory control. Typical applications cover temporary vessel closure during sample preparation, short-term storage or transport of non-aggressive solutions whenever a simple mechanical stopper is chosen instead of ground-glass joints or screw caps. The product forms part of the standard laboratory rubber-stopper range used for dependable, reusable closures.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 25 pc(s)
- Material: natural rubber
- Colour: red
- Top diameter: 22 mm
- Bottom diameter: 17 mm
- EAN: 4033378280039
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Questions about Stopper, red rubber, h. 25 mm, upper dia. 22 mm, lower dia. 17 mm
What is this article?
Stopper, red rubber, h. 25 mm, upper dia. 22 mm, lower dia. 17 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.