The Whirlpool W10407216 Door Gasket Grey for Refrigerator helps create a tight door seal to maintain consistent cooling and energy efficiency. This replacement door gasket is designed to fit around the refrigerator door, forming a secure seal between the door and cabinet when closed. It works by preventing warm outside air from entering and reducing the escape of cold air, helping the refrigerator maintain the desired internal temperature. Replacing a worn, cracked, or damaged gasket can improve cooling performance, reduce unnecessary energy use, help protect stored food, and support the refrigerator’s reliable day-to-day operation.