With its sleek symmetry, this KOHLER® Persuade Curv tank adds style to the bathroom without sacrificing comfort or water savings. An innovative nested trip lever offers the choice of 1.0 or 1.6 gallons per flush; the dual-flush lever is located on the side of the 1.0 or 1.6 gpf toilet tank like a traditional toilet, leaving the top free for storage. The high-efficiency 1.0-gallon flush setting reduces water use by more than 30 percent over 1.6-gallon toilets, which adds up to potential water savings of more than 5,000 gallons per toilet, per year.