DAYTON 4C329 Blower,12 1/2 In High Pressure Direct Drive Radial Blade Blower, Wheel Diameter 12 1/2 Inches, Wheel Bore 7/8 Inch, Inlet Diameter 7 Inches, Outlet Height 5 Inches, Outlet Width 4 Inches, Mounting Hole Diameter 3/8 Inch, Maximum Inlet Air Temperature 180 Degrees F, CW Rotation Viewed From Drive Side, Without Motor, Recommended Motor Power Rating 3 HP @ 3475 RPM