The Aquascape Pond Powerhead is disigned to create water movement and eliminate stagenent areas in ponds and water gardens, providing circulation, surface agitation, and aeration. This standalone pump does not require any pipe or plumbing. Simply set to the powerhead directly into the pond or disguise it in the pond using rocks or other materials. The energy-efficient, low-voltage motor can be powered by a standard outdoor 12-volt transformer (not included).