The Rockton toilet takes a practical approach to water conservation, offering two flushing options at the touch of a button—either 0.8 gallons or 1.6 gallons. The Dual Force flushing technology eliminates the need for double flushing, says the manufacturer. The toilet also features a computer-designed trapway and flapperless valve. Sterling, 920.457.4441; www.sterlingplumbing.com.