White Rodgers HFES 3-1/2SW45-01 Emerson HF SERIES THERMOSTATIC EXPANSION VALVE, EXTERNALLY EQUALIZED, 3-1/2 TON CAPACITY, REFRIGERANT CODE S (R-404A), CHARGE CODE W (45 MOP), CAP. TUBE 60", 1/2" ODF X 5/8" ODF, STRAIGHT THRU BODY