Blower Wheel Type Radial Drive Type Direct Drive Assembly Unassembled Wheel Diameter 9 in Minimum Airflow 173 cfm Maximum Airflow 437 cfm Maximum Static Pressure 5 in wc Maximum Inlet Air Temperature 180 Degrees F Bearing Type Ball Sound Level 77 dBA @ 5 ft Wheel Material Aluminum Housing Material Stainless Steel Wheel Width 9 in Number of Inlets 1 Inlet Diameter 5 in Outlet Shape Square Outlet Height 3 1/2 in Outlet Width 3 1/2 in Outlet Diameter Not Applicable