[Material]: Made of high quality steel and copper to last under extreme conditions, features thickening seals to prevent leaking [R134A Can Tap]: R134A brass automotive air conditioning dispensing valve, connects R-134a cans (except self-sealing cans), with 1/4 acme threads to all auto R-134a service hoses [Easy to Install]: The frozen R123A self-sealing can opener designs with hand operated punch/valve control, and safety check, its easy to handle [Specification]: This can tap valve bottle opener is designed to serve as a bottle opener for R134a refrigerant; Side thread diameter: 11mm / 0.43 Bottom thread diameter: 14mm / 0.55 Specifications Shape: M14 / 1/4 Connection: female thread Material: steel and copper Color: red + golden Weight: 75g approx. Side Thread Diameter : 11mm / 0.43 Bottom Thread Diameter : 14mm / 0.55 Package included: 1 * Auto AC Can Tap Valve Bottle Opener