1、Mixing Valve: This cold and hot mixing valve can adjust the temperature of cold and hot water to the comfortable temperature of human shower to avoid scalding. 2、Flow Regulation: The mixing valve is used to regulate the flow between hot water and cold water to maintain the comfort for daily use. 3、Safety Valve: Prevent the hot water in the inner tank from flowing back to the cold water pipe, which can drain the water pressure exceeding the rated pressure. 4、Excellent Comprehensive Design: This U shaped shower faucet mixing valve is easy to maintain, practical, made of premium copper and durable. 5、Easy to Install: This universal fitting of water inlet pipe is easy to install and operate, and can be used for replacement and maintenance.