Beschrijving
Thread adapter GL 18 to cone NS 19/26 is a precision laboratory glassware connector that links GL 18 threaded fittings directly to standard NS 19/26 ground joint cones. Manufactured from borosilicate glass 3.3, it delivers the chemical resistance and thermal durability required for routine and advanced laboratory work. The compact design, with a net weight of only 0,014 kg, keeps apparatus assemblies light while maintaining mechanical stability under vacuum or moderate pressure. This adapter enables leak-free transitions in distillation trains, reaction setups, and solvent-transfer lines, supporting both organic synthesis and analytical sample preparation. Its GL 18 thread provides a secure screw connection that can be tightened by hand, while the NS 19/26 cone mates reliably with common jointed glassware. Supplied as a single piece from manufacturer Rettberg, the component integrates smoothly into existing borosilicate systems without introducing additional dead volume. Laboratories appreciate the clear glass construction for visual monitoring of flow and the inherent inertness of borosilicate glass 3.3 toward most reagents and solvents. Ideal for modular apparatus building in research, teaching, and quality-control environments, this adapter simplifies the creation of custom configurations while preserving the integrity of sensitive chemical processes.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Adapter
- Material: Borosilicate glass 3.3
- Thread: GL 18
- Joint size: NS 19/26
- Technical Information Sheet:
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Questions about Thread adapter GL 18 to cone size 19/26
What is this article?
Thread adapter GL 18 to cone size 19/26 is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Hose connectors, adapters & fittings, inside Tubing, hoses & fittings, in Labmateriaal.
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 Labmateriaal.
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.
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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.