This refrigerator ice and water filter is used in refrigerators requiring filter W10295370A or W10295370. The W10295370A helps reduce those tastes and odors making the water you drink more refreshing. That same filter media is also NSF Standard 42 and 53 Certified to capture industrial chemicals, lead, and cysts among several other pollutants that are sometimes found in water inside homes The filter should be replaced every 200 gallons or every 6 months whichever occurs first.