Schrader’s air conditioning filling valves are primarily used for loading vehicle air conditioning circuits with gas, and during service to purge the circuits before refilling. Schrader’s valves are compatible with a wide range of air conditioning couplers. The product consists of a valve stem, valve core, and plastic cap. Several valve body versions are available, including aluminum, steel, saddle, bore, and banjo. Additionally, several rubber types for the core seals are available, including CR, FPM, EPDM, and HNBR. Schrader air conditioning valves are compatible with 134a, 1234yf, and CO2 gases.