This Devonshire two-piece toilet combines high efficiency with the old-world style of the Devonshire collection. Its single 1.28 gal flush setting provides significant water savings of up to 16,500 gal per year (versus an old 3.5 gal toilet) without sacrificing performance. An elongated bowl and comfortable height ensure ease of use. Kohler® Toilet, 2-Piece, Devonshire® Comfort Height® Collection, 1.28 gpf Flush, Elongated Bowl, 16-1/2 in Rim Height, 12 in Rough-In, 2-1/8 in Trapway, Floor Mounting, AquaPiston® Flushing System, 3-1/2 in Flush Valve, 9-3/8 in W Bowl, 17-1/4 in W x 30-3/4 in D x 29-1/4 in H Overall, Vitreous China, Dune