Read This Before You Replace Your Refrigerator Water Filter

A refrigerator water filter is an inline carbon block that treats water on its way to the dispenser and ice maker. Because it runs under household pressure inside a sealed line, it gets far better contact time than a pitcher, and many are certified for health contaminants rather than taste alone. What you have to verify is which certifications your specific model actually carries. Key Takeaways — Are refrigerator filters any good? Better than most people assume, and better than the pitcher sitting next to them. A genuine fridge filter is a compressed carbon block running under pressure, and plenty are certified for lead and cysts. Two things undo that: running the cartridge months past its rating, and dropping in a cheap “compatible” cartridge that fits the housing but was never tested in it. START WITH YOUR WATER Your fridge filter may already cover you — or may not It depends entirely on what’s in your water. Pull the detections for your ZIP first. Check my ZIP → What’s Actually Inside a Refrigerator Filter Cut one open and you find a compressed carbon block, usually wrapped in a sediment layer, sealed in a plastic cartridge with an inlet and outlet at one end. It sits in the col...