The assembly case water filter (DA97-21325A) for your Samsung 28 cu.ft. capacity 3-door French door refrigerator can often be the culprit if water filtration issues arise. If your refrigerator's water filter is not properly housed or secure, this genuine Samsung part could be needed. It's crucial to replace faulty components to maintain your refrigerator's performance. Before purchasing, confirm your device's model number for compatibility.