Affiliate disclosure

This site currently has no affiliate links. Product names that appear are examples, shown without links, prices or any payment to us.

• If affiliate links are turned on, they go to Amazon product pages, carry the rel="sponsored nofollow" attribute, appear only after the data answer, and sit beside a disclosure line.
• We never show prices. Prices change and we will not type them by hand.
• Commissions never influence which contaminant data we show, how we rank utilities, or whether we say a filter fits.
• The 8 products on the site were each opened on Amazon and matched to a contaminant by what the listing and the certifier say. That is not a review or a test; we do not test products.
• Whole-house brands such as Aquasana and SpringWell may be named for orientation. They are plain mentions with no link and no relationship with us.
• We do not sell leads and never pass your data to a seller. The site has no forms.