Affiliate Disclosure

Transparency about how we earn revenue and maintain editorial independence

FTC Compliance

In accordance with FTC 16 CFR Part 255 guidelines on endorsements and testimonials, TapWaterData discloses that some of the links on this website are affiliate links. This means we may earn a commission if you click through and make a purchase, at no additional cost to you.

How Affiliate Links Work

When you click on certain product links on TapWaterData and make a purchase, we may receive a commission from the retailer (such as Amazon). This commission comes at no extra cost to you—the price you pay is exactly the same whether you use our link or not.

These commissions help us maintain and improve TapWaterData, including:

  • •Aggregating and updating water quality data from EPA and state sources
  • •Maintaining our database of NSF-certified water filters
  • •Creating educational content about water quality and filtration
  • •Keeping the site free for all users

Our Editorial Independence

Our recommendations are based on NSF certification data and water quality science, not on commission rates.

We are committed to maintaining editorial integrity:

  • âś“Science-Based Recommendations: We only recommend filters that are independently certified by NSF International or WQA to remove specific contaminants
  • âś“No Pay-to-Play: Filter manufacturers cannot pay us to be included or ranked higher in our recommendations
  • âś“Personalized Matching: We match filters to your specific water quality issues based on certification data, not profitability
  • âś“Transparent Sources: Our water quality data comes from EPA SDWIS, state databases, and utility reports—not from filter companies

Amazon Associates Program

TapWaterData is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate, we earn from qualifying purchases.

Your Trust Matters

We built TapWaterData because we believe access to clean drinking water shouldn't require a PhD in chemistry. Our mission is to aggregate complex water quality data and connect you with certified filters that actually work.

While affiliate commissions help keep this service free, they will never compromise our commitment to science-based recommendations and editorial independence. If we recommend a filter, it's because it's certified to remove the contaminants in your water—not because of the commission rate.

Questions?

If you have any questions about our affiliate relationships or how we maintain editorial independence, please read our About page or learn more about Our Data Sources.

Last updated: October 11, 2025

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