Description
Brown glass stoppers, DURAN® are semi-hollow standard taper stoppers designed for reliable closure of laboratory glassware with ground joints. Sized 24/29 and manufactured to DIN 12252, they feature an octagonal grip that supports secure handling when fitting or removing the stopper from flasks, bottles and reaction vessels. The brown DURAN® glass construction suits routine laboratory work where light-sensitive contents or standard joint systems are used and a durable, chemically resistant stopper is required. Each unit is supplied as a pack of 10 pc(s), giving convenient stock for teaching labs, analytical benches and preparative setups that rely on interchangeable ground-glass joints. Physical pack weight is 0,234 kg. These stoppers from manufacturer DWK Life Sciences integrate cleanly into existing DURAN® and DIN-compatible glassware fleets, helping maintain consistent joint geometry across multi-neck flasks, adapters and storage vessels. Ideal for general laboratory sealing tasks where octagonal, semi-hollow brown glass stoppers in the 24/29 joint size are specified.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Product type: Brown glass stoppers, DURAN®
- Joint size: 24/29
- Design: Semi-hollow, octagonal
- Standard: DIN 12252
- Weight: 0,234 kg
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Questions about Brown glass stoppers, DURAN®, semi-hollow, 24/29, DIN 12252, octagonal
What is this article?
Brown glass stoppers, DURAN®, semi-hollow, 24/29, DIN 12252, octagonal is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
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 Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.