Genuine Frigidaire PureSource 3 WF3CB Replacement Refrigerator Water Filter. This filter is designed to reduce contaminants for cleaner, better-tasting water and ice. It is certified to reduce up to 99% of contaminants including lead, mercury, cysts, and pesticides. Key features include: – Model: WF3CB / PureSource 3 – Capacity: Replace every 6 months or 200 gallons – Easy installation with slide-in design – NSF/ANSI Standard 42, 53, and 401 certified Condition: The item is new and unused. The original box is open and shows some shelf wear/distressing, but the filter itself remains pristine with protective caps intact.