Blower Wheel Type Forward-Curved Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 11 1/2 in Minimum Airflow 1 700 cfm Maximum Airflow 2 900 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 9 3/8 in Outlet Duct Connection Height 11 3/8 in Outlet Duct Connection Width 13 1/8 in