This Highline Classic dual-flush toilet offers the choice of 1.1 or 1.6 gallons per flush, and a unique two-tone nested trip lever mounted on the side rather than on the top of the tank. The high-efficiency 1.1-gallon flush reduces water use by more than 30 percent over the 1.6-gallon mode, which adds up to potential water savings of more than 4,000 gallons per toilet, per year. This Highline Classic Complete Solution toilet comes with all the necessary installation hardware for added convenience.