Description
Conical joint stopper NS 24/29 made of borosilicate glass 3.3 is a hollow laboratory stopper featuring a hexagonal grip disc. Intended for sealing larger standard taper joints, it closes flasks, condensers and multi-neck vessels reliably during chemical reactions and separations. The borosilicate glass 3.3 material supplies the thermal and chemical resilience required for demanding laboratory applications. Hollow construction keeps the stopper light yet sturdy, and the hexagonal grip disc enables confident manipulation when assembling or dismantling apparatus. Available as a single unit from manufacturer Brand, the stopper corresponds exactly to NS 24/29 ground-joint dimensions widely employed in preparative chemistry and process development. Consistent fit and durable finish support repeated use in distillation trains, reflux setups and general glassware configurations. Net weight of 0,0169 kg ensures convenient handling while preserving the mechanical integrity expected of professional laboratory stoppers.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Borosilicate glass 3.3
- Joint size: NS 24/29
- Design: Hollow with hexagonal grip disc
- EAN: 4033378280718
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Questions about Conical joint stopper Boro 3.3, NS 24/29, hollow, hexagonal grip
What is this article?
Conical joint stopper Boro 3.3, NS 24/29, hollow, hexagonal grip is the article on this page. Luminix Health distributes BRAND 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.