Description
NR rubber stopper, grey, is a tapered laboratory closure with a lower diameter of 26 mm, an upper diameter of 32 mm and a height of 30 mm. Manufactured from rubber in a neutral grey finish, it is supplied with two pre-formed bores, each 6 mm in diameter, allowing simultaneous passage of tubing, glass rods or probes while maintaining a secure seal on flasks, bottles and reaction vessels. The conical profile ensures progressive seating as the stopper is pressed into the neck, supporting reliable closure in routine wet-chemistry, sample preparation and teaching-laboratory work. Net weight is 0,0219 kg per piece, making the stopper easy to handle and store in standard stopper racks. This format from manufacturer Deutsch & Neumann belongs to the established NR grey series used across analytical and preparative laboratories wherever a durable, bored rubber stopper of defined dimensions is required. Pack size is one piece, suitable for replacement of individual stoppers or for building matched sets by size.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Rubber
- Colour: Grey
- Lower diameter: 26 mm
- Upper diameter: 32 mm
- Height: 30 mm
- Technical Information Sheet:
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Questions about stopper NR, grey, bottom diameter: 26 mm top diameter: 32 mm height: 30 mm
What is this article?
stopper NR, grey, 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.
