Concealed Valve

A concealed valve is a type of plumbing valve that is installed inside a wall or other structure, making it invisible from the outside. Concealed valves are typically used to control the flow of water in a shower, bathtub, or sink. They are also used to control the flow of gas in a gas-fired appliance. Concealed valves are usually operated by a knob or lever on the outside of the wall, allowing the user to control the flow of water or gas without having to access the valve itself.