This Beckett Pond Waterfall Pump is ideal for big waterfalls. This waterfall reaches a maximum lift of 154 inches and has different stream settings that pump a maximum of 800 gallons per hour. Can also be used in fountains and container gardens. Great for indoor or outdoor water structures that have a changing water level. Pond pumps circulate and airate their environment, constructing an eco balance in which wildlife of all kinds, including goldfish, koi, and turtles can thrive, as well as a vast vaierty of flora. The black, plastic casing forms a hardy piece of equiptment. The pump operates oil free, eliminating the risk of water contamination. Energy effecient pump means you can move more water through your water feature while using less power.