The VorMax 1.0gpf/3.8Lpf Chair Height Elongated Toilet from American Standard has been proven to clean the bowl 2X better than a regular toilet, thanks to a unique flushing system that produces a powerful jetted scrub. CleanCurve rim eliminates hidden, hard to reach areas where dirt and buildup can collect. Our exclusive EverClean surface inhibits the growth of stain and odor-causing bacteria, mold and mildew. Backed by an industry-leading warranty, this ultra high-efficiency toilet uses just 1 gallon per flush and is WaterSense certified for its water-conserving design and performance. Easy to install, it features an elongated bowl and 17-in. height to ensure comfort and accessibility.