Filter database

The water filters worth shopping

724 consumer filters from recognizable brands — searchable by the exact contaminants each is certified to remove, sorted by true cost per gallon. We distilled these from 5,682 NSF/WQA/IAPMO certification records, setting aside the commercial, foodservice, dealer-installed, and manufacturer-of-record (OEM) entries a shopper doesn't buy. Toggle all certified below to browse the full registry.

Search brand / model Type Certified for Sort On Amazon only All certified (+ commercial/OEM)

Filter	Type	Certified for	Capacity	Price	¢ / gal

Amazon prices as of October 20, 2026 at 2:01 PM ET; we show a price only if we read it from Amazon in the last 24 hours. As an Amazon Associate we earn from qualifying purchases. Disclosure.