Frigidaire WFCB

http://www.waterfilters.net/Frigidaire-PureSourcePlus-WFCB-RC200-Refrigerator-Filter.html
The Frigidaire WFCB water filter produces cleaner, better tasting drinking and cooking water by reducing chlorine taste and odor as well as sediment, Cysts, Lead, and Turbidity, 2,4-D, Atrazine, and Toxaphen. The Frigidaire Water Filter WFCB has a filter life of up to 6 months and should be replaced sooner if you notice tastes and odors returning to your water, the water pressure is greatly decreasing, or the filter monitor light on the refrigerator has turned red (if included with refrigerator).