AC tube o-ring. lower. PartQualifier: lower. TO 09/09/2019. VALVE BLOCK. 13.7 x 2.5mm. A seal that Prevents oil from leaking out, or contaminants from enteRing the Air Conditioning Evaporator Core. A/C Expansion Valve O-Ring. A/C Line O-Ring. A/C Refrigerant Line O-Ring. Auxiliary A/C. Exc.Auxiliary A/C. Exc.Heat Pump. Heat Pump. Part cannot be reused/reinstalled. Part has related components that cannot be reused/reinstalled; seal and gasket. Part serviced with AC Line. Part serviced with housing. R1234YF Refrigerant. Included with: AC Hose, AC Hose, from condenser to comPressor, AC Line, AC Tube, AC Tube Part cannot be reused/reinstalled, Blower case, Center AC Line, Center AC Tube, Center AC Tube Part cannot be reused/reinstalled, Center plate, ComPressor to Evaporator Hose, Cooling pipe, Discharge Line, Front AC Line, Front pipe, Heat exchanger, Hose and Tube assembly, Housing, Liquid Line, Lower Hose, Lower Hose & Tube, Plate, Plate Part cannot be reused/reinstalled, Pressure Hose, Pressure Hose Part cannot be reused/reinstalled, Rear AC Hose, Rear AC Line, Rear AC Tube, Rear AC Tube Part cannot be reused/reinstalled, Rear pipe, Rear pipe assembly, Return Line, Suction Hose, Suction Hose Part cannot be reused/reinstalled, Suction Line, Suction pipe, Tube assembly, Upper Hose & Tube, Upper Pressure Tube, Valve AC Line Part cannot be reused/reinstalled,, Valve assembly.