Mixing Check Valve, Fits Brand Sani-Lav, Brass, Chrome Plated Finish

Thermostatic mixing valves sense water temperatures and adjust the flow from hot and cold water lines to match the faucet settings. They help prevent scalding by maintaining a constant water temperature even as the water volume changes. They're typically found in faucets with separate water volume and temperature controls. These valves are used as replacements for valves that allow leaks from a spout and no longer control water temperature or volume.