Single Vortex Flush: 1 GPF Integrated Tank: The built-in tank utilizes an air assisted pump that delivers a powerful and consistent flush without electricity regardless of the home's water pressure that operates substantially quieter than a traditional wall-hung toilet Flush Technology: Features a manual side button with a powerful jet flush Integrated Side Control: Allows you to conveniently operate the flush and manage bidet functions directly from the side of the seat Comfort Height: Between 17-19 inches, the comfort height toilet makes standing and sitting easier, especially for taller individuals