This pump has everything you need to keep a small fish pond clean and healthy. This is an all-in-one pump, meaning that all of the usual pond system components are contained in one handy submersible unit. There is a large filtration chamber with this system containing a filter foam and two loads of ceramic media. This pump is suitable for small ponds up to 3,000 litres (660 gallons) and can run both the filter and a waterfall/small water feature in ponds up to 2,000 litres (439 gallons). NOT SUITABLE FOR KOI PONDS. NOTE: UVC bulb included.