Features: Charging port adapter R12 R22 Port to accept R134a Quick Disconnect. These Low/High side retrofits/adapters/fittings will convert your old 1/4" SAE or 7/16” 20UNF R12 R22 charging port and make it accept the R134a quick disconnect hose. Fittings Have Removable Schrader Valves. High Side: Red, 7/16-20UNF or 1/4"SAE. Blue: 7/16-20UNF or 1/4" SAE. Can be matched used with valve by connecting with screw thread There are gas valves inside, equipped with a plastic protective cap .
