Driven by the permanent-magnet in-phase motor, this pump is high-efficiency, energy-saving, and durable. Made of stainless steel, the shaft of the pump can endure abrasion and corrupt and can be used in freshwater and seawater. The motor is sealed in the body shell with resin.With excellent water-proof performance and high isolation intensity, it is safe and reliable. Multi-functional design-pumping, fountain, and filter (3 in 1). With a stream control valve set in the pump, the stream can be adjusted at will.