Kohler 5308-0 Wellworth 1.0 GPF Tank - White WIH7L_UM740

Product details:

An American classic, this Wellworth ultra high-efficient toilet tank reduces water consumption without compromising on flushing power. A 1.0-gallon flush reduces water use by more than 35 percent over 1.6-gallon toilets, offering a water savings of more than 6,000 gallons of water per toilet and per year. Pair this tank with a coordinated highline bowl for a complete toilet.