Part of the Devonshire collection, this high-efficiency tank takes inspiration from old-world design. Its 1.28 gal flush setting provides significant water savings of up to 16,500 gallons per year, compared to old 3.5 gal toilets, without sacrificing performance. Pair this tank with the K-4397 bowl for a complete toilet. Kohler® Toilet Tank, Devonshire®, 1.28 gpf, Left Hand Lever Flush, 2.12 in Flush Valve, 12 in Rough-In, 13-5/8 in Height, 16-15/16 in Width, 7-7/8 in D, Vitreous China, Dune