The Resideo AM100-UP-1LF is a mixing valve that regulates and stabilizes water temperature. It is ideal for almost all HVAC applications including residential and commercial plumbing. This valve has a Union Pro Press connection which ensures that the valve is easily fixed in place. Its key features encompass two check valves for operation reliability; a nickel-plated brass body for du... https://www.partshnc.com/am100-up-1lf-resideo-12-union-lead-free-mix-valve