Brass concealed water tank check valve is mainly used for hidden water tank water inlet control. It is made of high-quality brass and has the characteristics of high pressure resistance, rust resistance and corrosion resistance. The valve is usually installed inside the wall and used with the toilet hidden water tank. It can effectively control the water flow and is easy to repair and replace. China faucet factory provides OEM customization services of different specifications and interface types, which are suitable for intelligent water-saving systems in residential, hotel and commercial toilets.