This Cistern Plastic Ball Valve is a type of quarter-turn valve which utilizes an empty, punctured and rotating ball to control course through it. It is open when the ball's gap is in accordance with the stream and shut when it is turned 90-degrees by the valve handle. The handle of our Cistern Plastic Ball Valve lies level in arrangement with the stream when open, and is opposite to it when shut, making for simple visual affirmation of the valve's status.