High performance multipurpose electronic centrifugal pump, designed with energy saving concepts. Water flow is adjustable by electronic control.The series of Hydor Seltz D pumps is ideal for running sump, refugium, biological filters and in general for circulation in freshwater or salt water aquariums to the benefit of the ecosystem health.Equipped with pre -filter and pipe fittings of various diameters, the Seltz D series of Hydor is perfectly suited to installations that require dry or wet use.