The Aquascape Pond Powerhead is an innovative. low-voltage pump designed to create water movement and eliminate stagnant areas in ponds and water gardens. This pump does not require any pipe or plumbing. simply set the powerhead directly in the pond or disguise it using rocks or other materials. The Pond Powerhead is great for solving problems with stagnant water and unsightly buildup of decaying debris, providing circulation, surface agitation, and aeration. The Pond Powerhead can be used alone or with additional Pond Powerheads to maximize circulation in larger water features. Use Aquascape Quick-Connect Splitters and Extension Cables for quick and easy installation of multiple units.