Our underwater filters are designed for ponds with a capacity of up to 9 m³ and 4.5 m³ with fish stock. In addition to the filter elements for the mechanical and biological purification of the water, the integrated UV lamp removes germs and floating algae. Bacteria, viruses and fungi are also removed. The filters are very easy to remove for maintenance. All Filtral UVC underwater filter models also have a built-in pump with a height-adjustable fountain attachment for water features.