For up to six months, the Frigidaire WF3CB PureSource 3 refrigerator water filter keeps your water tasting crisp and clean. Reduces chlorine, lead, mercury and more from up to 200 gallons of drinking water dispensed by your fridge. Genuine OE part from the manufacturer. The WF3CB refrigerator water filter can be upgraded to the ULTRAWF, for increased contaminant reduction