Blower Wheel Type Backward-Inclined Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 12 1/4 in Minimum Airflow 949 cfm Maximum Airflow 3 275 cfm Maximum Static Pressure 5 in wc Maximum Inlet Air Temperature 250 Degrees F Shaft Diameter 1 in Bearing Type Pillow Block Ball Wheel Material Steel Housing Material Steel Wheel Width 6 3/8 in Number of Inlets 1 Inlet Diameter 13 1/4 in Outlet Shape Rectangular Outlet Height 13 1/4 in