Blower Wheel Product Type Blower Wheel Wheel Type Forward-Curved Number of Inlets 1 Wheel Diameter 10 5/8 in Bore Diameter 7/8 in Wheel Material Steel Hub Type Not Applicable Wheel Hub Position Inside Wheel Construction Tabbed Maximum Speed 1 750 RPM Number of Blades 48 Blade Width 3.8 in Includes Set Screws Yes Includes Set Screws Compatible with Grainger Part Number 4C119 Compatible with Brand Dayton Compatible with Series Single Inlet Forward Curved Direct Drive Blowers