White Rodgers NBE 3HCA-05 Heat Exchangers NXT-R SERIES THERMOSTATIC EXPANSION VALVE, REFRIGERANT CODE H (R-22, R-407A), CHARGE CODE CA (HEAT PUMP), 3 TON, 3/8" X 1/2" ODF STRAIGHT THRU, SUPERHEAT ADJUSTABLE, NO INTERNAL CHECK, EXTERNAL EQUALIZER, NO BLEED, CAP TUBE 30"