Tetra's 3600 gallon per hour debris handling pump is a terrific investment for any pond hobbyist. The innovative design of the flat disc impeller assembly can handle the worst debris imaginable. Gravel, sticks, leaves, muck, you name it; this pump will chew it up and spit it out. This pump will be the initial stage of your pond filtration system, as it is designed to draw water through it's tough pre-fliter cage, and pump 3600 gallons per hour (at zero feet of head pressure) through your filtration system. For filters that require lower flow rates, try splitting and valving any excess flow to recirculate stagnant areas of your pond. This pump is a must-have tool for healthy well circulated ponds and water gardens. You won't regret purchasing this work-horse pump. Just drop it in, plug it in, and watch it destroy the debris that settles at the bottom of your pond or water garden. Tetra's energy efficient design means your pond won't cost you a fortune in monthly electricity costs! Comes with standard directional output nozzle for Tetrapond 1 1/2" and 1 1/4" no kink tubing, but with the right fittings, it can be used with a variety of different hosing sizes to fit your needs.