A contained body of water is subject to conditions such as dirt, insects, algae, and decomposed vegetation that affect the water clarity and health. A filtration system is needed to balance the pond"s ecosystem. This filtration system must match both the power of the pump and the volume of the water garden. Our bio filtration products utilize a dual filtration system consisting of both mechanical (foam filters) and biological (bioballs) processes. The bio filters watertight pressure containers ensure leak proof performance, while our unique self cleaning feature ensures filter performance is always working properly.