Mag-drive pumps are magnetically driven centrifugal water pumps that contain no seals to wear and contain no oil. Mag-drive pumps can be used in submerged or inline applications and are energy efficient, typically using only 1/2 the energy a direct drive pump would. Mag-drive pumps are available with pumping capacities from 35 gallons per hour to 1800 gallons per hour. A prefilter is included with all Mag-drive pumps. This provides uninterrupted flow to your water feature. All PondMaster Mag-drive pumps have a five year manufacturer's warranty.