The TOTO(R) SP Wall-Hung Square Shape Dual Flush 1.28 and 0.9 GPF Toilet with CEFIONTECT(R) opens up bathroom space, delivering style and innovative performance. The unique square shape front bowl adds a contemporary and clean look that transforms any bathroom into a modern paradise. The skirted design of the SP bowl conceals the trapway, which enhances the elegant look of the toilet and adds an additional level of sophistication. Skirted design toilets also eliminate the need to reach behind the bowl to clean the nooks and crannies of the exterior trapway, and the wall mount position saves up to 9 inches of floor space compared to standard floor-mounted toilets. The SP bowl features TOTO's DYNAMAX TORNADO FLUSH system, a hole-free rim design featuring three powerful nozzles that generate a centrifugal, cyclonic rinsing action with the option of 0.9 or 1.28 gallons of water. This wall hung toilet bowl also features TOTO's CEFIONTECT glaze that minimizes waste from sticking to the ceramic. This feature, coupled with the DYNAMAX TORNADO FLUSH reduces the frequency of toilet cleanings and minimizes the usage of water and harsh chemicals required for cleaning. Includes SP toilet bowl only. The SP Wall-Hung Bowl is designed for best results when used with the TOTO DuoFit(R) WT172M In-Wall Tank System. TOTO SS249 Square Slim SoftClose(R) seat required and sold separately.