KOHLER K-4000-0  San Souci Touchless Comfort Height 1.28 GPF Elongated Toilet with AquaPiston Flushing Technology, White, 1-Piece One-piece toilets integrate the tank and bowl into a seamless, easy-to-clean design. Compact elongated bowl offers added comfort while occupying the same space as a round-front bowl. Comfort Height(R) feature offers chair-height seating that makes sitting down and standing up easier for most adults. Concealed trapway and Clean Caps(TM) facilitate easier cleaning and enhanced design. Powered by 4 AA batteries (included) - Supply line not included.