The FiltoClear pressure filter with built-in UV Clarifier and patented Easy-Clean function is an ideal addition to koi and fish stock ponds. A hard worker, it combines mechanical and biological cleaning and serves as an effective UVC technology to clean green water. Treated water flows through fine and coarse mechanical and large pored biological filter elements and decomposes pollutants to clarify the water. FiltoClears patented easy-clean technology addresses filter and UVC maintenance in minutes. Cleaning and backflush is addressed without cover removal. Turning the rotary switch will activate the cleaning function. Compact filter size with high filtration capacity makes it a perfect match for small crevices around the pond. The canister portion of the unit can be buried and concealed. Made of impact resistant material, FiltoClear comes in three sizes: FiltoClear 3000 for ponds up to 3,000 gallons; FiltoClear 4000 for up to 4,000 gallons and FiltoClear 8000 for up to 8,000 gallons. It is praised for its ease of use and eco-friendly benefits. When used in conjunction with the AquaMax Eco Classic 1900-3600 Filter and Waterfall Pump or the AquaMax Eco Premium 2000-4000 Filter and Waterfall Pump, the FiltoClear qualifies for the OASE Clear Water Guarantee.