Aquascape®️ AquaSurge®️ 91019 1.5" MPT 4000 Pond Pump with 20' Cord 215 W. The Aquascape AquaSurge® 4000 Pond Pump is ideal for use in Ponds, Pondless® Waterfalls, and other water feature applications. With a maximum flow rate up to 4,000 gallons per hour, the pump is made for continuous use in either vertical or horizontal orientation. Asynchronous motor technology makes this pump extremely energy-efficient, saving you hundreds of dollars over traditional water pumps and the oil-free design prevents pond contamination. A variety of fittings is included for simple installation, including a rotational ball output which allows the discharge position to be easily adjusted. The AquaSurge® 4000 Pond Pump will not corrode or rust and its rubber feet will prevent noise and vibration while in use, making this the pump of choice for discriminating homeowners and pond professionals alike.