What Is a Wall Valve? What is a wall valve? A wall valve lets you close or opens the water supply to a plumbing system with a simple manual action. Uses A wall valve is essential in a plumbing system,
What Is a Wall Valve? What is a wall valve? A wall valve lets you close or opens the water supply to a plumbing system with a simple manual action. Uses A wall valve is essential in a plumbing system,