If your refrigerator door isn't sealing properly, it might be time to replace the door gasket. The gasket door-fre (DA63-02769B) is a genuine Samsung part designed for optimal insulation, ensuring your appliance maintains the right temperature. A faulty gasket can lead to temperature fluctuations, affecting your food's freshness. Suitable for Samsung's 42-inch built-in side-by-side refrigerator models, this gasket ensures a snug fit. Before purchasing, verify your device's model number for compatibility.