Mary Beth F Austin , AR March 24, 2021 Appliance: Frigidaire Refrigerator FRS26RLECSE Frigidaire Refrigerator Frs26rlecse: Somehow or other, the O-ring got lost when changing water filter. How to replace Refrigerator Water Filter Housing O-Ring. Ordered O-Ring from Appliance Parts Pros and replaced it. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes