KOHLER K-3987-RA-0 Wellworth Round-Front Dual-Flush Toilet with Class Five Flush Technology and Right-Hand Trip Lever, White, 2 Piece Round-front bowl offers an ideal solution for smaller baths and powder rooms Right-hand nested trip lever offers a choice of 1.1 or 1.6 gallons per flush (gpf) Coordinates with other products in the Wellworth collection Combination consists of the K-4197 bowl and the K-4458-RA tank Water Sense toilets meet strict EPA flushing guidelines, including using at least 20 percent less water than 1.6-gallon toilets