With its sleek symmetry, this Persuade® Curv tank adds style to the bathroom without sacrificing comfort or water savings. An innovative nested trip lever offers the choice of 1 or 1.6 gpf, the dual-flush lever is located on the side of the tank like a traditional toilet, leaving the top free for storage. The high-efficiency 1 gal flush setting reduces water use by more than 30% over 1.6 gal toilets, which adds up to potential water savings of more than 5000 gal per toilet, per year. Kohler® Toilet Tank, Dual-Flush, Persuade® Curv, 1.6 gpf Full/1 gpf Partial, Left Hand Lever Flush, Vitreous China, White