White Rodgers AACE 2-1/2HAA-03 Thermostatic Expansion Valve A-SERIES THERMOSTATIC EXPANSION VALVE, EXTERNALLY EQUALIZED, 2-1/2 TON CAPACITY, REFRIGERANT CODE H (R-22), CHARGE CODE AA (WIDE RANGE), CAP. TUBE 30", 3/8" ODF X 1/2" ODF, STRAIGHT THRU BODY, INTERNAL CHECK FOR HEAT PUMP APPLICATIONS