Terms of Use

By using Water Filter Nerd you agree to these terms. If you do not agree with them, please do not use the site.

The reviews are a spec breakdown, not a test and not advice. Every page is built from manufacturer documentation, NSF and WQA certification records, and published performance reports, and it is scored under a public methodology. We do not test filters. We do not guarantee that a listing, a price or a claim has not changed since we last checked. Nothing here is medical, legal or professional advice. Confirm the current specifications, the current price and the certification on the retailer's own listing before you buy.

Prices and availability move. Cost figures are ranges and derived per gallon estimates drawn from published capacity and published cartridge prices. They are not offers and they are not guarantees.

Affiliate links. Some outbound links are Amazon Associates links, and we may earn a commission from a qualifying purchase at no extra cost to you. Commissions never change a score. See the affiliate disclosure.

The content is ours. The text, the scoring, the charts and the page design are the property of Water Filter Nerd and may not be copied and republished without permission. Linking to a page is welcome.

Third party sites are their own. When you follow a link off this site, the destination's terms and privacy practices apply, not ours. See the privacy policy.

No warranty, and a limit on liability. The site is provided as it is. To the fullest extent the law allows, Water Filter Nerd is not liable for any loss arising from a decision made using this site, including a purchase that does not perform as you expected.

Changes. These terms may be updated, and the current version is always this page.