White Rodgers AACEB 3HCA-02 Emerson A-SERIES THERMOSTATIC EXPANSION VALVE, EXTERNALLY EQUALIZED, 3 TON CAPACITY, REFRIGERANT CODE H (R-22), CHARGE CODE CA (HEAT PUMP), CAP. TUBE 30", 3/8" ODF X 1/2" ODF, BLEED 0.032", STRAIGHT THRU BODY, INTERNAL CHECK FOR HEAT PUMP APPLICATIONS