With its clean, simple design and efficient performance, this KOHLER® Highline water-conserving toilet combines both style and function. An innovative 1.28-gallon flush setting provides significant water savings of up to 16,500 gallons per year, compared to an old 3.5-gallon two-piece round-front toilet, without sacrificing flushing power. The chair-height ensures comfortable use. Kohler® Toilet, 2-Piece, Highline® Comfort Height® Collection, 1.28 gpf Flush, Round Bowl, 16-1/2 in Rim Height, 12 in Rough-In, 2-1/8 in Trapway, Floor Mounting, Class Five® Flushing System, 10 in W Bowl, 18-1/8 in W x 31-1/4 in D x 27-3/4 in H Overall, Vitreous China, Biscuit