The Renaissance WaterWarden toilet from American Standard has an overflow protection feature to prevent spills due to a messy toilet bowl clog by draining excess water through the overflow holes located inside the bowl. This simple but revolutionary solution helps to avoid the mess associated with a clogged toilet, saving you the trouble of having to clean up the floor from this issue. With a water usage rate of 1.28 gallons per flush, the Renaissance toilet helps to save water, using 20% less than a standard 1.6gpf toilet. A taller Right Height of 16-1/2 inches provides extra comfort.Here’s How it Works: The WaterWarden™ overflow protection feature prevents overspill due to a messy toilet-bowl clog by draining excess water through the overflow holes located inside of the bowl. The overflow holes are directly connected to the drain line and offer a separate passageway for water to drain in the event of a clog. FeaturesWorry-free WaterWarden Overflow ProtectionMeets ADA requirementsVitreous chinaRound front siphon action bowl with direct-fed jetMeets EPA WaterSense® criteriaIncludes color-matched, solid plastic seat and chrome toilet handle3 year warranty on chinaware and mechanical parts, 1 year warranty on seatPerformanceHigh Efficiency Toilet uses just 1.28 gallons per flush/4.8 LpfGood flush performance100% factory flush quality testedSpecs12-inch Rough-inRight Height, Round Front ToiletGenerous 9" x 8" water surface area3-inch Flush Valve and 2" glazed Trapway helps to prevent clogs