Description: These Low/High side retrofits/adapters/fittings will convert your old 3/8"; or 7/16"; R12 charging port and make it accept the R134a quick disconnect hose. Fittings Have Removable Schrader Valves High: 3/8'' Low: 7/16'' Package Includes: 1 Piece 19mm Blue Cap 1 Piece 22mm Red Cap 1 Piece Blue low side quick coupler 1 Piece Red high side quick coupler
