White Rodgers TFES 20ZAA-03 Thermal Accessories TFE SERIES TAKE-APART THERMOSTATIC EXPANSION VALVE, EXTERNALLY EQUALIZED, 20 TON CAPACITY, REFRIGERANT CODE Z (R-410A), CHARGE CODE AA (WIDE RANGE), CAP. TUBE 120", 7/8" ODF X 1-1/8" ODF, STRAIGHT THRU BODY