High efficiency 1.28 gpf,VorMax Flushing System delivers a powerful jet of water that scrubs the bowl clean from top tobottom, removing everything in its path.CleanCurve Rim Design; Unique bowl design eliminates the conventional rim holesthroughout the bowl where unseen dirt tends to buildup. fully-glazed 2-1/16" trapway, Permanent EverClean Antimicrobial surface repels dirt and inhibits stain and odor-causing bacteria. Includes bowl, tank, slow-close seat, wax ring, and flange bolts. 10 Yr. Warranty.