Not all cores are eligible for credit. Details in overview below.
GM 15-51 A/C POA Valve (Type-1) REBUILT - 134a
This valve mounts to the outlet (top) fitting of the evaporator. It's purpose is to by-pass pressure in order to prevent the evaporator from freezing. Calibrated for 134a refrigerant. Note - Type-1 & Type-2 valves interchange without modification. Not all cores are eligible for credit. Please contact us for more information.