The American Standard H2Optimum siphonic elongated toilet offers high-efficiency without sacrificing performance. It uses just 1.1 gpf/4.2 Lpf, meaning maximum water savings for your home without ever compromising on powerful flushing performance. Enjoy the extra comfortable elongated design, perfect for the whole family. Maintenance is a breeze thanks to the EverClean® antimicrobial surface that protects against mold, mildew, odor- and stain-causing bacteria, keeping your toilet cleaner, longer. Plus, the PowerWash® rim scrubs the bowl with every flush. Seat sold separately.