Oase's third generation of FiltoClears filter water with mechanical and biological filtration and ultraviolet clarification (UVC). It has a compact filter size with high filtration capacity and is perfect for Fountain, Formal Spillway, Pond-free and Water Garden applications. Its high quality, impact resistant body can be buried up to the locking rings and concealed with an OASE FiltoCap. Three densities of replaceable filter foams, plates and extra supports improve cleaning function and ensure long service life. 2-way Valve backflushes filter and directs waste with Easy-Clean Technology, no need to open filter or remove the cover. Monitor UVC, filter performance and pollutant level and change UV lamp all without opening filter. Newly developed bypass technology ensures constant water flow and prevents the filter from becoming clogged. FiltoClears come with a variety of fittings to accommodate a multitude of installations including metric and Sch40 fittings. When paired with the appropriate pump, this filter qualifies for the Clear Water Guarantee. The FiltoClear 3400 has a 24 watt UVC, a max flow of 2,400 gallons, and can filter up to 3,400 gallons. The FiltoClear 3400 has a light fish load of less than 3,400 gallons, a medium fish load of less than 1,700 gallons and a heavy fish load of less than 850 gallons. Replacement UVC bulbs and filter foams are available.