The Whirlpool WPW10436245 Refrigerator Door Gasket provides a proper seal to maintain stable internal cooling conditions in compatible refrigerators. This flexible gasket is fitted around the edge of the door to close the gap between the door and cabinet, forming an airtight barrier. It operates by compressing against the frame when the door is shut, preventing warm air from entering and cold air from escaping. Installed along the inner door liner using the existing retaining groove, it aligns correctly with the door structure for secure placement. By supporting consistent temperature regulation and reducing air leaks, this part assists in maintaining proper cooling performance and helps limit unnecessary energy use during regular operation.