Featuring the elegant architectural look of the Memoirs collection with Classic design, this tank combines water-saving flush performance with traditional style. A high-efficiency 1.28-gallon flush offers up to 16,500 gallons of water savings per year, compared to a 3.5-gallon toilet, without sacrificing flush power. Pair this tank with the K-4380 bowl for a matched ensemble. 1.28 gallons per flush (gpf). Right-hand trip lever included. Seat and supply line not included. Combines with the K-4380 bowl to create a complete K-3816-RA toilet. Coordinates with other products in the Memoirs collection.