Blower Wheel Type Forward-Curved Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 12 1/4 in Minimum Airflow 1 375 cfm Maximum Airflow 2 660 cfm Maximum Static Pressure 1 1/2 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 1/2 in Number of Inlets 1 Inlet Diameter 13 1/4 in Outlet Shape Rectangular Outlet Height 13 1/4 in