Replacement Blower Wheel Product Type Replacement Blower Wheel Wheel Type Backward-Inclined Number of Inlets 1 Wheel Diameter 20 in Bore Diameter 1 3/16 in Wheel Material Steel Hub Type Not Applicable Wheel Hub Position Inside Maximum Speed 1 866 RPM Number of Blades 12 Blade Width 7.3 in Includes Set Screws Yes Includes Set Screws Compatible with Grainger Part Number 3C048 Compatible with Brand Dayton Compatible with Series Backward Incline Belt Drive Blowers