The Whirlpool W11504418 Refrigerator Lokring Tube Coupler 8mm is a tiny but significant component within your Whirlpool refrigerator's water dispenser system. It is a plastic coupler intended to make a tight, leak-proof connection between two lengths of 8mm tubing. These tubes are in charge of supplying cooled water to the dispenser inside your refrigerator door. The coupler's form maintains a tight seal at the junction of the tubes, preventing water leakage. A defective or damaged coupler might cause leaks inside the refrigerator cabinet, potentially causing water corrosion of other components and your flooring.Replace a worn-out or cracked coupler with the Whirlpool W11504418 to ensure a secure and dry connection in your refrigerator's water dispenser system.