Screw caps GL 22,

Screw caps GL 22 are laboratory closures intended for threaded bottles, manufactured from black plastic and fitted with a PE-LD sealing insert. The GL 22 thread matches common laboratory bottle formats, allowing straightforward fitting on compatible glass or plastic vessels used for sample storage, reagent handling and routine workflows. Black plastic construction gives a practical, robust outer shell, while the PE-LD liner supports contact sealing against the bottle neck under typical laboratory conditions. These caps suit everyday sealing tasks in research, quality-control and teaching laboratories where GL-threaded containers are standard. Packaged as 10 pc(s), they offer a convenient quantity for stocking spare closures or equipping multiple bottles at once. Produced by manufacturer Marienfeld, the design focuses on reliable mechanical closure without additional functional claims beyond the stated materials and thread. The combination of black plastic body and PE-LD insert makes them a clear choice for general laboratory bottle sealing where a GL 22 interface is required. Use them wherever matching threaded bottles need a simple, replaceable screw cap for containment during storage or transport within the lab environment.

This article is part of Screw caps & closures, in Stoppers, caps & closures.

Key features

• Pack size: 10 pc(s)
• Thread: GL 22
• Material: black plastic
• Sealing insert: PE-LD
• EAN: 4250317314109