Depress the thumb lever and push onto the tire valve. Release the lever to secure the air chuck and create a leak-free connection. Suitable for use on garage and industrial air hose systems, auto and manual tire inflators, portable pressure gauges, constant pressure systems. Securely locks the air chuck onto the Schrader valve.

• Durable, spring-loaded TPU seal
• Fits all standard Schrader valves (VG8/8V1 valve threads)
• Heavy-duty construction for strength
• Suitable for use on: Garage and industrial air line systems; Auto and manual tire inflators; Portable pressure gauges; Constant pressure systems

• Open- Air Passes Through Freely
• Closed- Must Engage the Value For Air to Flow