Description
Stopper CR, reddish-brown is a tapered rubber laboratory stopper for dependable closure of glassware and vessels in the laboratory. Featuring a bottom diameter of 26 mm, a top diameter of 32 mm and a height of 30 mm, it seats firmly in correspondingly sized openings. Two bores, each 6 mm in diameter, accommodate tubing, thermometers or similar inserts while keeping an effective seal. The stopper is manufactured from durable rubber in a reddish-brown colour and is appropriate for general chemical, biological and analytical applications. Supplied by manufacturer Deutsch & Neumann in packs of 50 pieces, it is practical for laboratories that require this intermediate size on a regular basis. Net weight is 0,0247 kg per piece. Dual-bore CR rubber stoppers of these dimensions are commonly used to close flasks and bottles when simultaneous connection of gas or liquid lines is needed, combining mechanical flexibility with reliable sealing performance in day-to-day laboratory practice.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 50 pc(s)
- Material: Rubber
- Bottom diameter: 26 mm
- Top diameter: 32 mm
- Height: 30 mm
- Number of bores: 2
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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 the EU, two to five days if 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.
