The self-cleaning filters retain all unwanted substances suspended in the water, such as sand, limestone flakes and iron oxide. The EUROPA semi-industrial self-cleaning filters DN65-DN80-DN100 are manual and automatic versions equipped with cartridges with 100-, 200- and 500-micron filtration grades. The net is washed by reversal of flow (backwash) using a TURBOCLEAN impeller that invests the entire surface of the mesh with energetic sprays, conveying impurities to the drain.