Why you should change your filter
When you buy an NSF-certified water filter from the refrigerator's manufacturer or an authorized seller, you can count on it to remove the contaminants it's certified to remove. But even the best filter becomes less efficient eventually, as it traps more and more impurities.
That's why it's important to replace the filter every 6 months—or sooner if you notice water flow slowly. That way, you know the filter is doing all it can to ensure you have clear, tasty, safe drinking water.
Learn more about refrigerator water certification.