These wall-hung and wall-faced toilet suites feature plumbing hidden inside the wall to create a roomier and more luxurious look suited for smaller bathrooms. Although the plumbing and tanks are hidden, access is gained through the button trim plate or access panel. The tank, flush-valve, and trap are designed to work as one optimized system to use less water without affecting performance; the dual-flush system reduces water use by 40 percent compared to traditional toilets.; 800.605.4218.