Description
Thread adapter GL 18 to cone NS 29/32 is a robust laboratory connector that joins GL 18 threaded ports to larger NS 29/32 ground joint cones. Produced from borosilicate glass 3.3, the adapter combines excellent chemical inertness with high thermal-shock resistance, making it suitable for a broad spectrum of laboratory applications. Weighing only 0,022 kg, it adds minimal mass to multi-piece glassware assemblies while ensuring mechanical reliability. The GL 18 thread allows quick, tool-free attachment of screw-cap vessels or tubing adapters, and the NS 29/32 cone provides a standard taper seal compatible with common reaction flasks and condensers. This component is particularly useful in scale-up synthesis, fractional distillation, and solvent recovery setups where larger joint sizes are preferred. Offered as a single unit from manufacturer Rettberg, the adapter maintains the optical clarity and surface smoothness characteristic of quality borosilicate glassware. Its construction supports repeated autoclaving and exposure to aggressive reagents without degradation. Researchers and technicians value the straightforward integration into existing apparatus, reducing the need for multiple intermediate pieces and thereby lowering the risk of leaks or contamination in sensitive chemical workflows.
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 29/32
- Technical Information Sheet:
Recently viewed
You may also like
Questions about Thread adapter GL 18 to cone size 29/32
What is this article?
Thread adapter GL 18 to cone size 29/32 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 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.