013332-01. Double Inlet Direct Drive and Blower Wheel - 1/2 Inch Bore 9-1/2 Inch Dia 9-1/2 Inch W Made using heavy duty, corrosion resistant galvanized, cold rolled steel for long lasting durability. Universal replacement wheels for direct drive blowers rated to 200�° F, but are recommended for application temperatures that do not exceed 135�° F. Rotation isCW. Center disc isConcave. Max RPM is1,750. Multiple quantities are available.