Blower Wheel Type Forward-Curved Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 10 1/4 in Minimum Airflow 810 cfm Maximum Airflow 1 960 cfm Maximum Static Pressure 1 in wc Maximum Inlet Air Temperature 150 Degrees F Shaft Diameter 3/4 in Bearing Type Ball Sound Level Not Rated Wheel Material Steel Housing Material Steel Wheel Width 4 1/2 in Number of Inlets 1 Inlet Diameter 9 3/4 in Outlet Shape Rectangular Outlet Height 10 1/4 in