High flow, high head energy efficient direct drive technology is combined with superior stainless steel and reinforced fiberglass construction; Upright design with space-saving footprint makes this pump ideal for skimmer and pondless waterfall installations with an intake-screen that prevents clogging; Direct drive motor provides years of life while providing the power needed to create heavy water flow. High quality seals for long and efficient pump life; Engineered for 24-hour continuous use, while a heat-overload sensor prevents a burnout, with a vortex impeller that passes solids up to 0.25"; Contains no oil, completely safe for fish, wildlife and aquatic plants