Certified A/C Pro Car Air Conditioner Adapter Valve, Retrofit Valve Adaptor Converts Refrigerant from R-12 to R-134A, Includes Dust Cap and Retrofit Label, InterDynamics;

Certified A/C Pro Automotive Air Conditioning R-12 to R-134a Retrofit Valve Adapter for 7/16 inch low side port is for converting automotive air conditioning systems from R-12 to R-134A. Includes dust cap and retrofit label. Certified A/C Pro Automotive Air Conditioning R-12 to R-134a Retrofit Valve Adapter is a professional grade retrofit valve kit that works with R-134a refill fittings. Fits all vehicles pre-1994.