The Rheem-Ruud PD619094 Thermal Expansion Valve (TXV) Kit is a refrigerant metering component designed for compatible Rheem and Ruud air conditioning and heat pump systems. It regulates refrigerant flow into the evaporator coil according to system pressure and temperature conditions, helping maintain proper superheat and efficient heat transfer. This kit supports consistent cooling pe... https://www.partshnc.com/pd619094-rheem-ruud-txv-kit