Raritan Smart Toilet Control Circuit Board [STC548W]Smart Toilet Control Circuit Board Smart Toilet Control (STC) is a controller for flushing toilets to optimize water use without compromising the quality of flush. Control consists of a controller, panel, and 7 of cable. STC is designed to automatically start a flushing cycle if normal or water saver buttons are pressed. The water only button brings inlet water to the bowl when pressed and the empty only button evacuates the bowl. Both water only and