This pump utilizes the benefits of stainless steel to keep moisture away from the electrical components. A Mechanical seal is not required, thus completely eliminating any possibility of leaking. The main components of the pump housing consist of high rigidity stainless steel for the motor shaft, graphite bearings. The water cycles between stator and rotor, this is not only for cooling, but also for bearing lubrication. The pump is noise free under normal operation. Advanced scientific design allows for continuous use of 30,000 hours trouble-free and maintenance-free. The features for this pump are: no noise, no vibration, no leaking, and long term maintenance free operation.