This oil free and energy efficient pond pump from smartpond® can be used to recirculate water in your hydroponics systems. Offering a quiet operation and a maximum flow rate of 800 GPH, this pump is ideal for large ponds of up to 1,500 gallons or about 9-ft x 16-ft x 1.5-ft in size. The adjustable flow control allows you to manually change how much water goes through the pump. Creating a large pond with water features can be as easy as 1, 2, 3 when you use this smartpond® pump with the PVC Pond Liner (model 52519) and Pond Filter (model 52503). Don't forget to pick up the 3/4-in ID Corrugated Tubing (model 53966) to connect the pump to the filter and add a Pond Nozzle Kit (model 52531) to create a beautiful decor.