The Frigidaire 242193201 door gasket helps maintain a tight seal around the refrigerator door to reduce cold air loss. This flexible gasket fits around the door opening and compresses against the cabinet when the door closes, helping prevent warm air and moisture from entering the refrigerator compartment. A proper seal supports more consistent internal temperatures and allows the cooling system to operate as intended. Replacing a worn, cracked, loose, or damaged gasket can improve door sealing, reduce unnecessary cooling demand, and help protect stored food from temperature changes.