ACDelco GM Original Equipment A/C Refrigerant Suction Hose carries the refrigerant vapor from the outlet of the evaporator to the inlet or suction side of the compressor. The refrigerant suction hoses are chemical-resistant and have hydraulically crimped fittings. The hoses may include service ports depending on application, and are specifically designed for service equipment and the particular refrigerant used. This original equipment A/C refrigerant suction hose is a GM-recommended replacement for your vehicle’s original component and has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.