The TOTO Aquia II Elongated Skirted Toilet Bowl is designed for use with the Aquia ST416M dual-flush tank. When pair with its tank, the Aquia features TOTO’s Dual-Max dual flush option allowing you to proactively conserve water usage. Choose between a 0.9 GPF rinse or 1.6 GPF for tougher jobs. The skirted design conceals the trapway, which enhances the elegant look of the toilet and adds an additional level of sophistication. Skirted design toilets also minimize the need to reach behind the bowl to clean the nooks and crannies of the exterior trapway. When paired with its tank, the Aquia meets the standards for EPA WaterSense®, and California’s CEC and CALGreen requirements. Additional items needed for installation and use must be purchased separately: tank, wax ring, toilet mounting bolts, water supply lines, and toilet seat.