Balboa 1051057 Wow Bath Pump 9.0Amps 115V 1HP 3' Nema Cord Air Switch Ultra quiet operation- no intrusive pump noise while the whirlpool is operating Compact design- easy installation within the whirl pool bathtub environs Multiple volute configuration options gives flexibility in installation UL and CSA conformity gives peace of mind Self-draining volute promotes hygienic operation