Tier1 Replacement for Frigidaire WF2CB PureSource2, NGFC 2000, 1004-42-FA, 469911, 469916, FC 100 Refrigerator Water Filter 4 Pack DESIGNED TO FIT: The rectangle face plate is for use in place of the EWF01 Electrolux Pure Advantage filter, the curved face plate is for use in place of the WF2CB Frigidaire PureSource2 filter. NSF 42 CERTIFIED: Each Tier1 refrigerator filter is tested and certified for materials and structural integrity requirements HIGH EFFICIENCY FILTRATION: Reduces Chlorine Taste & Odor, Rust and Corrosion, Sand Sediment, Silt, and Turbidity for 300 gallons or 6 months, depending on water usage and quality REPLACEMENT MODEL: This is a replacement comparable part to WF2CB, 46-9911, PureSource 2, 46-9916, FC100, NGFC2000, EWF2CBPA, EFF-6029A, MB-100, and WP2CBMB Please note there are two detached plates included in the packaging. Make sure to use the correct one as a replacement for your filter/refrigerator Chlorine Taste and Odor Rust and Corrosion Sand Sediment Silt Turbidity Press the button to the right of the filter to release it Pull the old filter straight out and discard (don&#039;t worry, the water will shut off automatically) Push the new filter in VERY FIRMLY until you hear it CLICK into place The filter can be difficult to lock into place, and may take more force than you expect Once it LOCKS in place, the filter releases a water valve that lets water flow through the filter Reset your change filter light (if your fridge has one) To condition the filter system, run water through the dispenser for approximately 3 minutes before use