KOHLER K-3997-RA Wellworth Two-piece round-front 1.28 gpf toilet with right-hand trip leverAn industry standard since 1936, the Wellworth toilet offers an iconic, streamlined design. With a 1. 28 gallon flush and space saving round front bowl, this Wellworth high efficiency toilet features outstanding performance while remaining economical in its water usage, saving over 16,500 gallons of water per year compared to a 3. 5 gallon toilet. Two piece design. Round front bowl offers an ideal solution for smaller baths and powder rooms. 1. 28 gpf