The Supreme Mag-Drive Utility Pump is specifically designed for statuary, fountains, ponds, and freshwater or saltwater aquariums. It may be used either in-line or submerged. The Mag-drive is extremely energy efficient and is designed to run continuously. The pump consists of a power unit encased in water-proof epoxy which creates a magnetic field. This drives a powerful ceramic magnetic impeller, the only moving part. It does not contain seals or contaminating oils therefore, it is virtually maintenance free. Mag-drives are UL listed to USA and Canadian safety standards.