Lifegard Aquatics offers the All-In-One Complete Pond Filter System designed to beautify, clean and maintain a healthy water environment. This submersible system contains a mechanical filter to remove solids and a biological filter to promote bacteria growth. An ultraviolet sterilizer is included to kill free floating algae when needed. The complete self-contained system will maintain ponds, fountains or water gardens from 300 gallons up to 1500 gallons.