With its clean, simple design and efficient performance, this Highline water-conserving toilet combines both style and function. An innovative 1.28-gallon flush setting provides significant water savings of up to 16,500 gallons per year, compared to an old 3.5-gallon toilet, without sacrificing performance. The elongated seat and chair-like height ensure comfortable use. Two-piece toilet. Elongated bowl offers added room and comfort. Comfort Height® feature offers chair-height seating that makes sitting down and standing up easier for most adults. 1.28 gallons per flush (gpf). Standard left-hand Polished Chrome trip lever included. Combination consists of the K-4436 tank and the K-4373 bowl. 10-inch rough-in.