ultraviolet clarifier filter for ponds, saltwater aquariums and dolce.Rimuove water green algae and bacteria that cause turbidity of the water and protects fish against pathogenic bacteria. It makes the water clean and clear without the use of chemical products. Complete with lamp UV-C high-performance and long-term, automatic safety switch for the replacement of the lamp, safety closures. the filter body shock-resistant, exposure to sunlight and weather. Can be used as single unit or in combination with PREXO filters adv, adv and PURE PRACTICAL adv line NEWA POND.