The Whirlpool W10860480 Refrigerator Door Gasket helps maintain a proper seal to keep cold air inside and improve cooling efficiency. This flexible seal is installed around the refrigerator door edge and works by creating an airtight barrier when the door is closed, preventing warm air from entering and cold air from escaping. Made from durable, resilient material, it conforms to the door frame to ensure a consistent fit over time. By supporting stable internal temperatures, it helps reduce energy consumption and supports proper food preservation. Overall, it contributes to efficient appliance performance and helps minimize strain on the refrigerator’s cooling system.