Manufacturer Name: York Product Number: S1-1TVMBC1 OEM Part Number: S1-1TVMBC1 The York S1-1TVMBC1 TXV Kit with Chatleff Connector is intended to enhance the performance of HVAC systems utilizing R-410A refrigerant. This kit contains a thermal expansion valve (TXV), which regulates refrigerant flow into the evaporator coil, resulting in effective cooling while preventing compress... https://www.partshnc.com/r410a-txv-kit-34chatleff-con-2