Replacement Blower Wheel Product Type Replacement Blower Wheel Wheel Type Radial Number of Inlets 1 Wheel Diameter 19 1/8 in Bore Diameter 1 7/16 in Wheel Material Steel Rotation CW/CCW Hub Type Not Applicable Wheel Hub Position Inside Maximum Speed 2 994 RPM Number of Blades 6 Blade Width 6.6 in Includes Set Screws Yes Includes Set Screws Compatible with Grainger Part Number 3C107 Compatible with Brand Dayton