GAV Safety Quick Coupler 1/2 M Packaged Two Stage Release

Features:
Airblock Safety Quick Coupler (packaged) Airblock is designed to first shut off the air and then open to release the Coupler connection. A true safety feature:
Excellent airflow characteristics
Universal type coupling
Patented design Made in Italy
1/2 inch male BSP thread The air flow freely through the Coupler Push release backwards. The flow of air is cut and the pressure is vented.
The Coupler is released from the connection The British Standard
...Pipe (BSP) is a family of Standard screw thread types that has been adopted internationally for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread and has been adopted as a Standard scale used in plumbing fittings. What’s in the box
1 X Safety Quick Coupler 1/2 M Packaged Two Stage Release