The Whirlpool W11535162 Refrigerator Water Valve is an essential component of your refrigerator's water dispenser system. It regulates the water flow to the dispenser in the same way as an on and off switch. Water can enter the dispenser by passing through an internal passageway that is opened by pressing the lever on the dispenser. The water flow is stopped when the lever is released, closing the valve. A broken water valve can lead to a number of problems with your dispenser, such as leaks, intermittent water flow, or no water at all. You can guarantee that you always have access to cold, filtered water by replacing your refrigerator's water dispenser with a new W11535162 when the old one breaks.