White Rodgers NBE 5ZAA-11 Thermal Accessories NXT SERIES THERMOSTATIC EXPANSION VALVE WITH ADJUSTABLE SUPERHEAT, NO CHECK, EXTERNALLY EQUALIZED, 5 TON CAPACITY, REFRIGERANT CODE Z (R-410A), CHARGE CODE AA (WIDE RANGE), CAP. TUBE 60", 1/2" ODF X 5/8" ODF, STRAIGHT THRU BODY