Hikari RIO+ HYPERFLOWGood water circulation is critical to maintaining a healthy environment. The Rio HyperFlow delivers high performance at an affordable price. This compact, highly efficient pump uses Neopower magnetic vortex rotor blade technology to pump more gallons per watt than any same size external pump. Rare earth compounds pack power into a neatly compact pump. Cool and efficient operation keeps energy costs low. The shaft with ceramic bushings offers strength