Manufacturer Name: Carrier Product Number: 331709-789 OEM Part Number: 331709-789 The Carrier 331709-789 Thermal Expansion Valve (TXV) Kit is a high-quality replacement component designed for Carrier HVAC systems. This kit includes a precision-engineered thermal expansion valve that regulates the flow of refrigerant into the evaporator, ensuring optimal cooling performance and en... https://www.partshnc.com/331709-789-carrier-kit-txv