In-Line Duct Blower Wheel Type Backward-Inclined Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 11 in Minimum Airflow 424 cfm Maximum Airflow 1 090 cfm Maximum Static Pressure 2 1/2 in wc Maximum Inlet Air Temperature 160 Degrees F Shaft Diameter 3/4 in Bearing Type Sealed Pillow Block Wheel Material Aluminum Housing Material Steel Inlet Diameter 7 3/4 in Outlet Diameter 7 3/4 in Outlet Duct Connection Height 11 3/4 in