This Beckett water pump is designed without seals, which can wear out, and has only one moving part, an impeller in a shaft. It also contains no oil, eliminating the danger of it leaking into your pond and harming your wildlife. This lasting design creates a low maintenance pump which uses less energy than a direct drive pump, and can potentially save hundreds of dollars over time. This large pump is ideal for powering a waterfall, moving water through a biological filter, or creating a fountain, and can circulate up to 1875 gallons of water in an hour. The unit is meant only for submersible use, and the two included foam prefilters protect the inner workings of the pump from debris. These foam filters both attach to the front of the pump via an included T-shaped fitting, and can be removed easily for cleaning, to maintain optimal performance. The all plastic pump body ensures a durable item, and the black color keeps it inconspicuous in your water. The top outlet accepts 1 1/2" flexible tubing with ease. Create a waterfall or fountain in your backyard pond using this Pond and Waterfall Pump.