Door boot DC64-01810B creates a seal between your wash tub and the door, preventing water leaks in your Samsung 3.9 CU. FT. high efficiency front-load washer. If you're noticing water pooling or leaking from the door area, it may be time to replace this part. Remember to unplug your washer before installation, and protect your hands with work gloves. Verify your washer's model number for compatibility before purchasing.