The Revolution SP Fan from Rite-Hite Corporation combines Rite-Hite High-Volume/Low-Speed fan technology with a compact design for more effective air circulation in smaller spaces and areas with limited ceiling heights. Available in 8-, 10, - and 12-foot diameters, the Revolution SP Fan's, four-blade design includes easy-to-use controls that allow users to adjust fan speed or operate the unit in reverse. Mounting heights range from 10 to 30 feet from the finished floor to the bottom of the fan blade. The Revolution SP is engineered with a rotationally balanced blade/hub connection along with vibration-absorbing resilient material that reduces stress to the hub by 50 to 75 percent. The motor and an extruded, precision-milled aluminum hub provide reliable operation with virtually no maintenance.