Description These low/ high side retrofits/adapters/fittings are designed to replace your old 3/16" or 1/4" R12 A/C charging port and make it accept the R134a quick disconnect hose. Iron adapter with copper plating finish to ensure long term durable use and appearance. Can be matched used with by connecting with screw thread. Fit for you car A/C system. Features - Color: Random color- Material: Iron and plastic- Size: 3.50X1.50X1.50cm/1.38X0.59X0.59in - R12 Port to accept R134a quick disconnect and quick coupling charging port adapter.- Iron adapter with copper plating finish to ensure long term durable use and appearance.- Can be matched used with by connecting with screw thread.- Effortless installation save you more time.- With removable gas valves and plastic protective A/C system cap.- Package contents:1 x 3/8-24UNF (3/16inch) R12/R134a Low side retrofit1 x 3/8-24UNF (3/16inch) R12/R134a High side retrofit1 x 7/16-20UNF (1/4inch) R12/R134a Low side retrofit1 x 7/16-20UNF (1/4inch) R12/R134a High side retrofit4 x A/C System Caps4 x Removable ValvesPacking list: 1 x 3/8-24UNF (3/16inch) R12/R134a Low side retrofit1 x 3/8-24UNF (3/16inch) R12/R134a High side retrofit1 x 7/16-20UNF (1/4inch) R12/R134a Low side retrofit1 x 7/16-20UNF (1/4inch) R12/R134a High side retrofit4 x A/C System Caps4 x Removable Valves