An American classic, this Wellworth high-efficiency toilet tank reduces water consumption without compromising on flushing power. Its 1.28 gal flush setting provides significant water savings of up to 16500 gal per year compared to a 3.5 gal toilet, making this tank an economical addition to your house. This Wellworth tank matches a coordinated bowl for a customized ensemble. Kohler® Toilet Tank, Wellworth®, 1.28 gpf, Right Hand Lever Flush, Floor Mount, 13-15/16 in Height, 18 in W, 8 in D, Vitreous China, Black