Description
DURAN® hexagonal hollow stopper with short ground joint, flat and ground, is a hollow glass stopper sized NS 24/20 for sealing laboratory vessels that use short ground-joint sleeves. Fabricated from borosilicate glass 3.3, it is intended for closing apparatus equipped with matching short conical ground joints. The flat top and ground finish provide a secure seal, while the hexagonal exterior aids handling and placement. This short-joint variant is designed specifically for DURAN® short ground-joint sleeves and belongs to the hexagonal hollow-stopper family used across volumetric flasks, mixing cylinders and related glassware. Supplied as one piece with a net weight of 0,015 kg, the stopper offers a practical reusable closure for vessels with standard short ground joints. From manufacturer Duran/DWK Life Sciences, the ground quality ensures consistent seating. Typical applications include routine sealing of short-joint laboratory glassware during sample handling, mixing or temporary storage in analytical and general laboratory environments.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Borosilicate glass 3.3
- Joint size: NS 24/20
- Grind quality: Ground
- EAN: 4032051046399
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Questions about DURAN® Hexagonal Stopper short ground, flat, finished
What is this article?
DURAN® Hexagonal Stopper short ground, flat, finished 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?
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.

