KOHLER® Wellworth toilets have been an American benchmark for style, innovation, and performance since 1936. This Wellworth high-efficiency two-piece elongated toilet delivers significant water savings with a 1.28-gallon flush setting that saves up to 16,500 gallons per year, compared to an old 3.5-gallon toilet, without sacrificing flush power. This model includes an insulated tank liner to help prevent condensation on the outside of the tank, and an elongated shape for extra comfort. Kohler® Toilet, 2-Piece, Wellworth® Collection, 1.28 gpf Flush, Elongated Bowl, 14-1/2 in Rim Height, 12 in Rough-In, 2-1/8 in Trapway, Floor Mounting, Class Five® Flushing System, 3-1/4 in Flush Valve, 10-1/8 in W Bowl, 18 in W x 29-1/4 in D x 30 in H Overall, Vitreous China, White