White Rodgers HFES 3-1/2BA-01 Emerson HF SERIES THERMOSTATIC EXPANSION VALVE, EXTERNALLY EQUALIZED, 3-1/2 TON CAPACITY, REFRIGERANT CODE B (R-448A,R-449A), CHARGE CODE A (MED./LOW TEMP.), CAP. TUBE 60", 3/8" ODF X 1/2" ODF, STRAIGHT THRU BODY