Description
Hollow stopper NS 24/29 brown tinted is a hexagonal hollow stopper engineered for standard ground joints according to DIN 12252 and equipped with an integrated drip tip. The brown colouration aids rapid identification within multi-joint glassware trains, while the hollow body reduces mass yet retains the rigidity needed for repeated use. Designed to close flasks, adapters and reaction vessels fitted with an NS 24/29 joint, it delivers a tight, reliable seal for everyday laboratory operations. Offered as a single unit with a net weight of 0,018 kg, the stopper is convenient to handle and store. Its accurately ground joint surface ensures smooth engagement with corresponding female joints, and the hexagonal head provides a secure grip for insertion and extraction. This brown-tinted hollow stopper from manufacturer Witeg serves as a practical accessory in synthesis, distillation and general analytical work where colour-coded closures improve organisation of complex apparatus. The drip tip helps limit liquid carry-over when the stopper is removed, contributing to cleaner and more efficient laboratory practice.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Joint size: NS 24/29
- Type: Hexagonal hollow stopper
- Feature: With drip tip
- Colour: Brown tinted
- EAN: 4045761291546
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Questions about ST-hollow stoppers hexagonal ST 24/29 br
What is this article?
ST-hollow stoppers hexagonal ST 24/29 br is the article on this page. Luminix Health distributes Witeg 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.

