EAGO TB108 Ultra Low Flush Eco-Friendly Toilet, 1-Piece Ultra Low Flush (ULF) Eco-Friendly 1.6 Gallon flush. Not Dual Flush 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