Description
Thread adapter Type 68 is a laboratory fitting made from polytetrafluoroethylene (PTFE) that converts a GL38 female thread to a GL45 male thread. This adapter enables secure mechanical coupling between bottles, vessels and accessories that use different GL thread standards while preserving chemical resistance. PTFE provides excellent inertness toward a broad range of solvents, acids and bases, supporting reliable use in analytical, preparative and general laboratory fluid-handling systems. The precise thread geometry helps achieve leak-resistant joints essential for safe solvent transfer, sample storage and chromatography supply lines. Supplied as a single piece, the Type 68 adapter from manufacturer SCAT integrates readily into modular laboratory setups requiring GL38-to-GL45 adaptation. Its durable construction withstands repeated solvent exposure and routine cleaning procedures without compromising dimensional stability. Compact form and standardised threads allow straightforward installation by laboratory personnel working with glass or plasticware. The component contributes to flexible system configuration in HPLC, sample preparation and chemical handling workflows where material compatibility and mechanical integrity are critical.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
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Questions about Thread adapter, Type 68
What is this article?
Thread adapter, Type 68 is the article on this page. Luminix Health distributes SCAT for laboratory use. It sits in Hose connectors, adapters & fittings, inside Tubing, hoses & fittings, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.

