Blower Wheel Type Forward-Curved Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 15 1/2 in Minimum Airflow 8 250 cfm Maximum Airflow 9 750 cfm Maximum Static Pressure 2 1/2 in wc Maximum Inlet Air Temperature 250 Degrees F Shaft Diameter 1 in Bearing Type Ball Wheel Material Steel Housing Material Steel Wheel Width 15 in Number of Inlets 2 Inlet Diameter 12 1/2 in Outlet Shape Rectangular Outlet Height 15 7/8 in Outlet Width 18 5/8 in