... famous brand 4.north america standard pool pump:(1),Feature(WUA series) PumpWUA series is dual-speed pump designed for SPA ... mechanical seal type ensure watertight in long-time continuous operation.WUA series is recognized and accepted products by SPA manufacturers. Motor ... .5440*275*290 820WUA 4004.012 / 4.421 pool pump WUA series CE,CCC,UL,ROHS,TUV north America standard