The tank features Toto's industry-leading 1G technology, offering a powerful flush that flushes completely and fully with only one gallon of water. This version of the tank comes equipped with a decorative right-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. It can be used on the toilet C404CUFG bowl.