Description
BOLA screw-in connecting piece GL 14 with G 1/4" thread is a straight laboratory fitting made from polytetrafluoroethylene (PTFE). A 5,0 mm through-bore supports efficient media transfer, while the 15 mm hexagonal wrench size allows firm, controlled mounting. Only PTFE contacts the process fluid, delivering universal chemical resistance for demanding laboratory and process applications. This single-piece connector from manufacturer Bohlender links a GL 14 laboratory thread to a G 1/4" screw-in connection, enabling flexible integration into tubing runs, manifolds and apparatus. The inert PTFE body resists chemical attack and reduces the risk of contamination or sticking when handling aggressive solvents, acids or high-purity streams. Straight geometry keeps installations compact on the bench or inside instrument housings. Supplied as 1 pc(s) with a net weight of 0,0114 kg, it is a durable, chemically inert coupling for GL- and G-thread fluid systems in research, analytical and preparative laboratories where reliable sealing and material purity are required.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc(s)
- Material: Polytetrafluoroethylene (PTFE)
- Threads: GL 14 / G 1/4"
- Bore diameter: 5,0 mm
- Wrench size (hex): 15 mm
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Questions about BOLA GL-Screw-in Tube Fittings, GL 14, Ø 5 mm, G 1/4'' Opening of the spanner
What is this article?
BOLA GL-Screw-in Tube Fittings, GL 14, Ø 5 mm, G 1/4'' Opening of the spanner is the article on this page. Luminix Health distributes Bohlender 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. Delivery across the EU, two to five days if in stock. 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.

