American Standard has introduced the Champion PRO and Cadet PRO toilet series that consumer 1.28 gallons per flush, which is 20 percent less water than standard 1.6 gpf models. The Champion PRO has a 4-inch piston-action accelerator flush valve with a siphonic 2 3/8-inch trapway. The Cadet PRO has a 3-inch flush valve with a siphonic 2 1/8-inch trapway. Each can flush up to 2.2 pounds of solid waste. Other features include PowerWash, EverClean and EZ-Install installation kits.