The natural rhythm of water can be found in the hypnotic cascade of a waterfall, a tranquil brook, and the exhilarating rush of rapids. The KOHLER® RiverBath whirlpool brings home these natural sounds and rhythms, for a truly extraordinary bathing experience. Rapids, whitewater, and whirlpool settings offer a full range of water massage treatments at the touch of a button - in an extra-spacious 75" x 75" oval drop-in bath sized for multiple bathers.