Description
DURAN® reducing adapter with socket NS 24/29 and cone NS 45/40 is a ground-glass joint component for connecting two apparatus parts that have different standard taper sizes. Made from borosilicate glass 3.3, it bridges dissimilar NS joints so that modular glassware can be assembled without custom fabrication. Adapters of this type allow a larger or smaller joint to be introduced into an existing setup while preserving a rigid, self-supporting conical seal. The piece is intended for laboratory glass apparatus construction and is typically used together with joint grease or PTFE sleeves to ensure a tight closure. Offered by manufacturer Duran/DWK Life Sciences under the DURAN® trademark, the adapter supports flexible configuration of distillation trains, reaction assemblies and other multi-joint systems. Supplied as one piece with a net weight of 0,048 kg, it is a glass article suitable for further processing and integration into custom apparatus. Its standardised socket/cone geometry enables reliable size transitions between NS 24/29 and NS 45/40 components in everyday laboratory work.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Borosilicate glass 3.3
- Socket size: NS 24/29
- Cone size: NS 45/40
- EAN: 4032051058576
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Questions about DURAN® Reduction Adapter , socket/cone
What is this article?
DURAN® Reduction Adapter , socket/cone is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Hose connectors, adapters & fittings, inside Tubing, hoses & fittings, in Labware.
A hose connector or adapter joins two lines, or steps one bore down to another. The barb diameter has to match the tube, and the thread has to match the stopcock or the bottle. Most leaks are a mismatch here, not a hole in the tube.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
Which category should I open next?
The category is Tubing, hoses & fittings. The sub-category is Hose connectors, adapters & fittings. The catalogue is Labware.
Shelves beside this one are PVC, PTFE & other tubing, Stopcocks & valves, Silicone tubing and Tubing accessories.
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.

