Free Tool

Water Filter Matcher

Enter your ZIP code to see what's in your water and get personalized filter recommendations.

How It Works

  1. Enter your ZIP code — we look up EPA violation data for your water system.
  2. See detected contaminants — only health-based violations are shown.
  3. Get filter recommendations — matched to the specific contaminants in your water, with cost estimates and NSF certifications.
Data source: U.S. EPA Safe Drinking Water Information System (SDWIS). Contaminant data reflects the past 5 years of compliance monitoring. Filter recommendations are based on NSF/ANSI certified treatment technologies.

Why Filter Recommendations Matter

Not all water filters remove the same contaminants. A basic carbon pitcher filter can reduce chlorine taste but won't touch nitrates or arsenic. Choosing the wrong filter gives a false sense of security.

Our matcher cross-references your water system's actual EPA violation data with NSF-certified filter technologies — so you get recommendations that address the specific risks in your area.

Want professional help choosing a water treatment system?

Talk to a Water Specialist

Free service — connected with an independent provider.

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