Armstrong Air Omniguard Evaporator Coil, Series: EAC1P-50, 4 ton Nominal Capacity, 1000 to 1800 cfm, Upflow, R-22/R-410A, Piston Expansion Metering Device, 3/8 in Liquid Line, 7/8 in Suction Line, Aluminum Tube, Cased, 23-3/4 in L x 21-3/4 in W x 30-5/8 in H