The TOTO Eco Dartmouth E-Max 1.28 GPF Toilet Tank is designed for use with the Eco Dartmouth 1.28 GPF bowl. The Eco Dartmouth tank includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. The Eco Dartmouth tank features TOTO's E-Max flush technology, featuring a 3 wide flush valve. This reliable, highly efficient combination generates a powerful cleansing flush while only using 1.28 gallons of water. The Eco Dartmouth tank comes equipped with a decorative color-matched and chrome left-hand trip lever. The Eco Dartmouth tank meets the standards for EPA WaterSense, and California, CEC and CALGreen requirements. Additional items needed for installation and use must be purchased separately: toilet bowl, wax ring, toilet mounting bolts, water supply lines, and toilet seat. The Eco Dartmouth ST753E tank can be used on the C754EF toilet bowl. Eco Dartmouth toilet tank for use with Eco Dartmouth C754EF toilet bowl. E-Max 1.28 GPF flushing system, creates a powerful flush. Left-hand chrome trip lever. WaterSense, CALGreen, and CEC compliant. Included parts: tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. Purchased separately: Eco Dartmouth bowl, wax ring, toilet mounting bolts, water supply lines, and toilet seat