Filter Ledger is a source-linked foundation for buying the right water-filter replacement. Updated October 1, 2026.
Foundation | Records | Costs | Methodology | Disclosure | For agents | llms.txt
How this site is paid
Planned: this site may earn a commission when a reader buys through a link. No affiliate link or program is active yet, and nothing here is paid placement.
Coverage, order and claims are decided by the methodology, not by commission rate. A product with a higher commission is not ranked higher for that reason.
When links are added, each page will say so next to the link, in plain words.
What we have not done
No laboratory or household testing. Everything is sourced from manufacturers, certifier listings and published prices. Claims about what a filter removes are the manufacturer’s or certifier’s, scoped to the exact pair named.
Operator
Operated by GlintHQ Limited Liability Company, a Wyoming LLC.
Working name. No original testing, payment or affiliate enrollment. The $1,000 monthly profit target is a goal, not a forecast.