This water-saving version of the industry-leading Wellworth toilet brings graceful, streamlined design to the bath. At 1.28 gallons per flush, this high-efficiency toilet conserves up to 16,500 gallons of water per year, compared to a 3.5-gallon toilet, without sacrificing performance. An elongated seat offers extra comfort. Two-piece toilet. Elongated bowl offers added room and comfort. 1.28 gallons per flush (gpf). Standard left-hand trip lever included. Combination consists of the K-4436 tank and the K-4198 bowl. Coordinates with other products in the Wellworth collection. Standard 12-inch rough-in.