Blower Wheel Type Radial Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 12 1/4 in Minimum Airflow 515 cfm Maximum Airflow 1 795 cfm Maximum Static Pressure 12 in wc Maximum Inlet Air Temperature 250 Degrees F Shaft Diameter 1 1/8 in Bearing Type Pillow Block Ball Wheel Material Steel Housing Material Steel Wheel Width 4 1/2 in Number of Inlets 1 Inlet Diameter 7 1/4 in Outlet Shape Rectangular Outlet Height 7 in Outlet Width 6 in