The Unico System® Blower Module, M Series, 48000 to 60000 Btu/hr, Tonnage: 4 ton, 4.5 ton, 5 ton, 1250 cfm, 208-230 V, 12.8 A, 1 ph Phase, 60 Hz, Horizontal, Up Flow, Vertical, 3 Stages, 150 deg F, 38 in L x 13-3/4 in W x 17-1/2 in H, Additional Information: 1 hp Horsepower, 1700 rpm Speed, EC Motor