A 3-way diverter is typically used for an above showerhead, hand held showerhead and the third for either a tub filler or body jets. If you only need 2-ways, your plumber can easily cap the third pipe to cancel it out. A thermostatic valve allows you to have separate temperature and pressure controls, allowing you to leave the water on a certain temperature and turn your water on and off separately. Three round knobs from top to bottom: Water Diverter, Temperature Control, On/Off Control. Solid brass construction coated with a Matte Black finish Sleek modern design. Single panel design makes it a breeze to install to any surface. Certified by Uniform Plumbing Code (cUPC) UPC logo of authenticity etched on faucet Shower options and Hot & Cold functions etched on plate Includes both the trim and the rough in valve, so it has everything needed to function. Diverter knob can be positioned half way between outlets, giving you the opportunity to indulge in two shower experiences simultaneously.