Dual Flush. So simple yet so genius. One bottom for solid waste (1.6 gpf) and one button for liquid waste (0.8 gpf) * Soft Closing Toilet Seat and Lid Included * Powerful and efficient 3" flushing valve. Reduces the number of problems typically associated with older ball-chain-flapper systems * Wide water surface. A large surface area keeps odors down and allows for easy cleaning * Balanced water distribution. Designed to maintain the optimal balance between an increased diameter and proper exit velocity