Replacement Blower Wheel Product Type Replacement Blower Wheel Wheel Type Radial Number of Inlets 1 Wheel Diameter 9 in Bore Diameter 1/2 in Wheel Material Aluminum Rotation CW/CCW Hub Type Not Applicable Wheel Hub Position Center Maximum Speed 3 500 RPM Number of Blades 6 Blade Width 2.8 in Includes Set Screws Yes Includes Set Screws Compatible with Grainger Part Number 2C820 Compatible with Brand Dayton Compatible with Series Radial Blade High Pressure Direct Drive Blowers