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