KOHLER K-3887-G9 Cimarron Comfort Height Two-Piece Round-Front 1.28 GPF Toilet with AquaPiston Flush Technology and Left-Hand Trip Lever, Sandbar Round-front bowl offers an ideal solution for smaller baths and powder rooms Comfort Height feature offers chair-height seating that makes sitting down and standing up easier for most adults WaterSense toilets meet strict EPA flushing guidelines, including using at least 20 percent less water than 16-gallon toilets AquaPiston canister allows water to flow into the bowl from all sides, creating a morepowerful & effective flush Durable canister design has 90% less exposed seal material than a 3-inch flapper, for leak-free performance