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.Two square knobs from top to bottom: Temperature Control, On/Off Control.Sleek modern single panel design makes it a breeze to install to any surface.Hot & Cold, On & Off functions etched on plateIncludes both the trim and the rough in valve, so it has everything needed to function.Expertly crafted solid brass construction for long-lasting durability.Coated with a Polished Chrome or Brushed Nickel finish.