Perfect single-cylinder construction of high impact composite with no external metallic parts. Special non-scratching clamping system including stress relief.

The 6 mm coupling weighs only 125 g, and the 8 mm coupling only 140 g. This characteristic, highly appreciated by assembly line operators, helps prevent carpal tunnel problems.

Thanks to a patented safety push-button, the couplings can be connected and disconnected with one hand for quick and effortless changing.

Firm embedding of plug into socket and a long guide path for the connecting plug on hardened and ground bearing surfaces provide long life and reliable air-tightness.