HydroQuip 10-1010031-K Power WOW Bath Pump 120V 5-1/2 Amp with Air Switch - The WOW®! is the most reliable bath pump on the market. The WOW®! pump has years of reliable operation with less than 0.1% failure rate. It is compact in size and easy to install. The self-draining volute ensures a dry, clean system. Reliability, compact design and quiet power are the reasons the WOW®! has become the standard by which all other luxury whirlpool pumps are measured.