The Pentair Sweetwater Regenerative Blowers are inexpensive to operate and quiet.
Blower
The blower has only one moving part: a dynamically balanced impeller that is attached directly to the motor shaft. The rotating impeller does not touch a thing, so there is no wear, no vibration, no seals and no lubrication.
Motor
Direct-drive, TEFC motors feature permanently sealed ball bearings. These high-efficiency type motors will run cool and handle a wide range of power variations so often found in rural locations. Permanently sealed bearings incorporate polyurea grease. Thermal overload protection protects motor windings from damage should the blower become stalled during operation. Additionally, thermal overload protection switches automatically reset when single-phase motor windings cool down to a safe level of operation.