Toto Thermostatic Mixing Valve For Touchless Bathroom FaucetsThe TOTO Thermostatic Mixing Valve for Touchless Bathroom Faucets is designed for use with select TOTO touchless controllers. The valve allows hot and cold water mixing to be delivered to the single supply faucet controller. Shape Memory Allow allows the valve to respond to fluctuations in water temperature to prevent scalding. Installed below deck using G 1 2 inch, NPSM compatible fittings. Features and Benefits: For use with TOTO touchless faucet