An American classic, this Wellworth high-efficiency toilet tank reduces water consumption without compromising on flushing power. At 1.28 gallons per flush, this economical tank conserves up to 16,500 gallons of water per year compared to a 3.5-gallon toilet, while innovative technology ensures high-powered bowl cleansing. Its streamlined style matches with a coordinated bowl for a complete toilet. 1.28 gallons per flush (gpf). Right-hand trip lever included. Supply line not included. Combines with the K-4199 bowl to create a complete K-3658-RA Highline toilet. Combines with the K-5393 bowl to create a complete K-5296-RA Highline┬¼├å toilet. Coordinates with other products in the Wellworth collection.