The TOTO Drake G-Max 1.6 GPF Toilet Tank with Right-Hand Trip Lever and Bolt Down Lid is designed for use with the Drake bowl. The Drake tank features TOTO's G-Max flushing system which features a 3'' wide flush valve, extra-large siphon jet and a large trapway. The Drake tank comes equipped with a right-hand chrome trip lever and a bolt down tank lid to prohibit unwanted access to the tank. Vitreous china construction Water Use: 1.6 GPF G-Max flushing system Right hand chrome trip lever Bolt down tank lid prohibits access to the tank Key Features & Innovations G-Max We take pride in the fact that our toilets are not only beautiful to look at, they have inner beauty as well. It's there in our high-performance flushing systems, our specially designed trapways.