2pcs Piercing Tap Valve Kits Compatible with 1/4 5/16 3/8 Inch Outer Diameter Pipes 2pcs Piercing Tap Valve Kits Compatible with 1/4, 5/16, 3/8 Inch Outer Diameter Pipes, Car Air Conditioning Refrigerant Charging , Connect to R12/ R22 Port Only Features: Made of corrosion-resistant metal, won't wear out or rust over time. A convenient replacement part for you to use. The hose adopts high-quality rubber material, good pressure resistance and reliable. Comes with gauge for easily viewing during use, connect to the R-12/ R-22 port for easy conversion. It fits cans with the thread of 1/2 inch only. This refrigerant charging pipe with built-in safety valve to prevent accidental venting of refrigerant. It can be applied for home air-conditioning and car air-conditioning to add refrigeration. Specifications: Color: Blue+sliver Material: Aluminum + Copper + Rubber Quantity: 2pcs Compatible with 1/4 inch, 5/16 inch, 3/8 inch outside diameter pipes Package Weight: Approx.125g Package Size: Approx. 10 * 8 * 3cm Package List: 2 x bullet piercing tap valve kit _x000D_ _x000D_