Each Sunleaves DuraPump H2O is submersible for use in hydroponics and pond set-ups and features a sealed magnetic drive to ensure quiet and reliable operation. This 18-watt DuraPump also works inline, pushes 245 gallons per hour, has a maximum head of 6.4 feet and includes suction cups for mounting as well as a foam filter to keep debris away from the impeller assembly. Sunleaves guarantees DuraPump H2O units to be free of defects for one year from date of purchase.