Blower Wheel Type Forward-Curved Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 10 1/4 in Minimum Airflow 800 cfm Maximum Airflow 1 800 cfm Maximum Static Pressure 2 1/2 in wc Maximum Inlet Air Temperature 140 Degrees F Shaft Diameter 3/4 in Bearing Type Ball Wheel Material Steel Housing Material Steel Number of Inlets 2 Inlet Diameter 8 in Outlet Duct Connection Height 10 1/4 in Outlet Duct Connection Width 11 1/8 in