Features and Benefits: * Convert R134a manifolds to HFO1234yf refrigerant * Chrome design * 14mm connection to hoses * To use with the new refrigerant HFO1234yf on new cars Why purchase a new Manifold for HFO1234yf when you can purchase NEW HFO couplers to use on your R134a manifold. Convert R134a manifolds to the new refrigerant HFO1234yf with new couplers, this saves money. Comes with an AD88L tank adapter to 1/2" acme hoses. Chrome design manual couplers for years of service.