The Sicce Voyager HP 10 Stream Pump is a sleek, powerful stream pump that simulates the wave motion of a variety of different aquatic environments. Well suited for use in both freshwater and saltwater aquariums and provides wide, gentle water circulation that contributes to improved filter functionality. The unit features a self-cleaning ceramic shaft impeller through the internal recirculation of water and uses magnetic support and a rubber pad to reduce the amount of noise and vibration. The magnetic connection is suitable for mounting on glass up to 20 mm in size. The pump boasts a bidirectional rotor for a soundless, one way quick start system and also includes a preventative grid guard to eliminate any chance of your aquatic pets finding their way into the pump system. The Sicce Voyager 10 Stream Pump has a flexible 180 degree vertical angle and 360 degree circular rotation for optimum freedom when positioning the unit inside of the tank. Has a flow rate of 4000 gph and is incredibly energy efficient at only 25 watts. Ideal for freshwater aquariums up to 528 gallons and saltwater aquariums up to 264 gallons.