The Frigidaire 216481211 Refrigerator Door Gasket creates a sealing barrier around the refrigerator door to help maintain the proper temperature inside the appliance. This flexible gasket forms a close seal against the cabinet when the door is shut, limiting the exchange of warm air and cold air from escaping. Installed along the inner edge of the refrigerator door, it fits against the cabinet frame to support consistent cooling operation. A properly fitted gasket also assists with reducing unnecessary compressor operation caused by air leakage. Replacing a cracked, loose, or damaged gasket can restore an effective door seal, support stable internal temperatures, and maintain proper refrigerator operation. Verify model compatibility before installation.