Alfi AB2801 3-Way Thermostatic Valve Shower Mixer Square Knobs Modern square knobs and a sleek appearance make this easy to install single panel shower mixer a perfect choice. Equipped with a 3-way shower diverter, this brass thermostatic shower valve mixer by ALFI brand lets you switch from your handheld showerhead or above showerhead, to tub filler or body jets any time you wish! Solid brass construction coated with a Polished Chrome or Brushed Nickel finish. 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 square knobs from top to bottom: Water Diverter, Temperature Control, On/Off Control. Sleek modern design Single panel design makes it a breeze to install to any surface. UPC logo of authenticity etched on unit Shower options and Hot & Cold functions etched on plate Warranty: Limited lifetime warranty against manufacturing defects in materials and workmanship. Mechanical components are warranted against defect for 5 years from the original purchase.