KOHLER K-8687-0 San Souci Touchless Comfort Height 1.28 Gpf Compact Elongated Toilet with Aquapiston Flush Technology and Purefresh Seat, White Flush is Activated by a no-touch sensor mounted inside the tank, powered by 4 AA batteries (included) Compact elongated bowl offers added comfort while occupying the same space as a round-front bowl Comfort height feature offers chair-height seating that makes sitting down and standing up easier for most adults Includes k-5588 purefresh toilet seat, does not include supply line Aquapiston canister allows water to flow into the bowl from all sides (360 degrees), increasing the power and effectiveness of the flush