The International Comfort Products 15500210000471 Piston Body Assembly is an HVAC replacement component designed to support proper refrigerant flow within compatible air conditioning and heat pump systems. Installed in the indoor coil or refrigerant metering assembly, the piston regulates the amount of refrigerant entering the evaporator coil, helping maintain appropriate system press... https://www.partshnc.com/15500210000471-international-comfort-products-piston-body-assy