Blower, Wheel Type Forward-Curved, Drive Type Belt Drive, Includes Drive Package No, Assembly Unassembled, Wheel Diameter 12 3/4 in, Minimum Airflow 1,800 cfm, Maximum Airflow 3,600 cfm, Maximum Static Pressure 2 1/2 in wc, Maximum Inlet Air Temperature 140 Degrees F, Shaft Diameter 3/4 in, Bearing Type Ball, Wheel Material Steel, Housing Material Steel, Number of Inlets 2, Inlet Diameter 10 3/8 in, Outlet Duct Connection Height 13 3/8 in, Outlet Duct Connection Width 15 5/8 in