Blower Wheel, Product Type Blower Wheel, Wheel Diameter 18 3/4 in, Bore Diameter 3/4 in, Compatible with Grainger Part Number 3ATU4, 3ATU5, 3ATU6, 3GY66, 3GY70, 4YU97, 4YY18, 5DVN1, 5PV07, 6KWK3, Compatible with Brand Dayton, Compatible with Manufacturer Model Number 3ATU4, 3ATU5, 3ATU6, 3GY66, 3GY70, 4YU97, 4YY18, 5DVN1, 5PV07, 6KWK3