Features:Brushless pump, permanent magnetic rotor, maintenance-free.Enameled wire coil and circuit board are sealed by epoxy resin.The coil adopts pure copper enameled wire, lower temperature rise and longer life span. Amphibious pump, you can use it in the water or out of water(follow the installation instruction).IP68 waterproof grade, totally submersible in the water.Detachable design, providing convenience for cleaning work.With a filter, avoiding blocking the inlet.4 rubber suckers on the bottom, can adsorb on the smooth surface and reduce noise and vibration.Small size, high efficiency, low noise (less than 35db).Suitable for aquarium, fountain, car cooling, computer water cooling system and circulation systems.