Hot R12 to R134a A/C Air Conditioning Retrofit Connector Adapter Fitting Valve
1 x 3/8-24UNF (3/16SAE) R12/R134a Low side retrofit. 1 x 3/8-24UNF (3/16SAE) R12/R134a High side retrofit. 1 x 7/16-20UNF (1/4SAE) R12/R134a Low side retrofit. 1 x 7/16-20UNF (1/4SAE) R12/R134a High side retrofit.