At Kohler, we push flushing power and toilet design to the leading edge. KOHLER® Wellworth toilets have been an American benchmark for style, innovation, and performance since 1936. Part of the Wellworth collection, this high-efficiency two-piece elongated toilet provides significant water savings of up to 16,500 gallons per year, compared to an old 3.5-gallon toilet, without sacrificing flush power.