THE FILTERTIER SYSTEM DATABASE
Browse filters, softeners, conditioners, UV systems and well-water treatment across 26 brands. Each record shows what we know today — including flow, price, manufacturing origin and how deeply the evidence has been verified.
A product marked “Catalogued — Needs Evidence Review” is in the database so you can compare the market, but it has not yet earned a finalized WaterScore or ranking position.
SEARCH THE DATABASE
Search all 260 live systems. Use the research-status filter to separate fully reviewed products from systems that are catalogued but still being verified.
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Verified performance / origin partially verified
Catalogued — Needs Evidence Review
Catalogued — Core Specs Partially Verified
Catalogued — Core Specs Partially Verified
Verified core specs / origin partially verified
Catalogued — Core Specs Partially Verified
Catalogued — Core Specs Partially Verified
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Verified core specs, certification and brand origin statement
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Verified exact model
Verified exact model
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Verified exact model
Verified exact model
Catalogued — Legacy / Retail Comparison
Catalogued — Legacy / Retail Comparison
Catalogued — Legacy / Retail Comparison
Catalogued — Legacy / Retail Comparison
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Verified performance / origin needs exact-model confirmation
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Verified core specs / exact-SKU origin partially verified
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Verified core specs and origin
Verified core specs and origin
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Core Specs Partially Verified
Catalogued — Core Specs Partially Verified
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Verified core specs and origin
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Core specs, PFAS certification, capacity, flow & operation verified
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review
Catalogued — Needs Evidence Review