All components are perfectly matched to each other and require very little maintenance: connect, turn on and enjoy! Crystal clear pond water and the best possible living conditions for plants and your fish! Our innovative PRESS backwash filter systems combine high filtration performance. Thanks to the BACKWASH technology, the system can be cleaned efficiently without opening the filter: simply turn the lever on the cover and the water flows backwards through the unit, cleaning it. The integrated discharge pump allows for the supply of higher runoff. There is no problem using it below the surface of your pond water.