Pressure sensor o-ring. R1234YF. 10.8 x 1.82mm. A component which Prevents leaks at the Air Conditioning Refrigerant Pressure Sensor. A seal that Prevents oil from leaking out, or contaminants from enteRing the Air Conditioning Refrigerant Pressure Switch. A/C Expansion Valve O-Ring. A/C Expansion Valve Seal. A/C Line O-Ring. A/C Refrigerant Line O-Ring. Auxiliary A/C. Exc.Auxiliary A/C. Included with: AC & heater case, AC condenser to evaporator Line, ComPressor to condenser hose, Condenser to evaporator AC hose, Condenser to evaporator AC Line, Condenser to evaporator hose, Condenser to evaporator Line, Evaporator assembly, Evaporator core, Evaporator to condenser AC hose, Evaporator to condenser hose, Liquid Line, Pressure Line, Suction Line.