Description
CR stopper, reddish-brown is a solid rubber laboratory stopper intended for reliable sealing of flasks, bottles and other laboratory vessels. With a bottom diameter of 26 mm, a top diameter of 32 mm and a height of 30 mm, the tapered form ensures a firm fit in matching openings. The stopper is supplied without bore holes, making it suitable for applications that require complete closure rather than tubing passage. Manufactured from rubber, this reddish-brown CR stopper delivers the flexibility expected in routine laboratory work. Net weight is 0,02821 kg per piece, and the product is offered in a convenient pack of 50 pieces. Available from manufacturer Deutsch & Neumann, the stopper belongs to an established range of norm stoppers used across chemistry, biology and medical laboratories. Its consistent dimensions support reproducible experimental setups, while the solid construction without perforations is particularly useful when full isolation of contents is needed. The tapered geometry allows straightforward insertion and removal under typical laboratory conditions.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 50 pc(s)
- Material: Rubber
- Colour: reddish-brown
- Bottom diameter: 26 mm
- Top diameter: 32 mm
- Height: 30 mm
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Questions about stopper CR, redbrown, bottom diameter: 26 mm top diameter: 32 mm height: 30 mm
What is this article?
stopper CR, redbrown, bottom diameter: 26 mm top diameter: 32 mm height: 30 mm is the article on this page. Luminix Health distributes Deutsch & Neumann 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. Delivery across Europe, two to five days when in stock. 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.