Ice and water filter used in front access grilles in some Whirlpool/Kenmore brands refrigerators. Manufacturer suggests replacing filter every 6 to 9 months or sooner if in a hard water area. Replaces other filter p/ns 4392857, 4396163, WF-NL300, WF-L500 and others.
The manufacturer has replaced Part Number 4392857 with the exact replacement Part Number 4396508.