The compact FiltoClear pressurized filtration system includes the patented Easy-Clean function. The built-in UV Clarifier with bypass offers optimal efficiency at low power usage. The Easy-Clean patented cleaning mechanism makes filter maintenance possible in a matter of minutes. FiltoClear systems can be installed unobtrusively by burying up to 2/3 of the filter below ground. Pressurized filters should be used with waterfall or stream in your backyard pond. The filtration feature allows you to have all the necessary components for sustaining life in your pond while allowing you to use only one pond pump and filter to reach your waterfall. The FiltoClear Pressure Filter is your all-in-one filtration solution with the built-in UV-Clarifier. From the moment you add the filter to your pond the UV-Clarifier starts flocculating (clumping) microscopic green algae, which then can be removed very easily by the filter. A simple rotation of the cleaning switch and a few pulls on the cleaning handle will easily and effectively remove trapped debris inside the filter, without ever getting your hands dirty.