The Toto® Drake® G-Max 1.6 gpf Toilet Tank is designed for use with the Drake® bowl. The Drake® tank includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. The Drake® tank features Toto® 's G-Max flushing system which features a 3 in wide flush valve, extra-large siphon jet, and a large trapway. This reliable combination generates a powerful cleansing flush with 1.6 gal of water. The Drake® tank comes equipped with a left-hand chrome trip lever. 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 Drake® ST743S tank can be used on the following Drake® bowls: C743E, C744E, C744EG, C744EL, or C744EF.10.