PVC Ball Valve Union 50mm

A PVC (polyvinyl chloride) ball valve union is a type of plumbing valve that is used to control the flow of liquid or gas through a pipe. The valve consists of a hollow ball that rotates within the valve body to control the flow of fluid. The ball is connected to a handle or lever that can be used to turn the ball and open or close the valve. The "50mm" refers to the size of the valve, specifically the size of the pipe that the valve is designed to fit. It is the inner diameter of the pipe.