Side by side
Compare PFAS filters
The rows that decide it are near the top: what the evidence actually is, and whether anybody certified the PFAS claim.
- No paid rankings
- Primary sources checked
- Costs include replacements
- Affiliate-supported
- Evidence last checked
- How we check
AquaTru
AquaTru Classic Countertop Reverse Osmosis Purifier
- Certified for PFAS?
- Yes, IAPMO R&T
- Standards held
- NSF/ANSI 42, NSF/ANSI 53, NSF/ANSI 58, NSF/ANSI 401, NSF P473 (legacy label)
- PFAS compounds tested
- PFOA, PFOS
- Installation
- None. Sits on the counter and plugs in.
- Rated capacity
- Not published
- Flow
- Batch fill, 0.75 gallon clean tank
- Filter change
- Every 12 months
- Price when checked
- $475
- Replacement filter
- Check maker
- About per year
- $130
- Best for
- Renters who cannot touch the plumbing
- Main downside
- Takes up counter space and needs an outlet
Clearly Filtered
Clearly Filtered Water Pitcher
- Certified for PFAS?
- No
- Standards held
- NSF/ANSI 42, NSF/ANSI 372
- PFAS compounds tested
- PFOA, PFOS
- Installation
- None. Fill it from the tap.
- Rated capacity
- 100 gallons
- Flow
- Gravity, slower than a basic pitcher
- Filter change
- Every 4 months
- Price when checked
- $99
- Replacement filter
- $60
- About per year
- $180
- Best for
- Renters and dorm rooms
- Main downside
- Filters run about $60 and last only 100 gallons
Waterdrop
Waterdrop G3P800 Tankless Reverse Osmosis System
- Certified for PFAS?
- No
- Standards held
- NSF/ANSI 42, NSF/ANSI 53, NSF/ANSI 58, NSF/ANSI 372
- PFAS compounds tested
- PFOA, PFOS, PFBS, PFHpA, PFHxS, PFNA, PFHxA
- Installation
- Under the sink. Needs a power outlet and a drain line.
- Rated capacity
- Not published
- Flow
- 800 gallons per day
- Filter change
- Every 12 months
- Price when checked
- $759
- Replacement filter
- Check maker
- About per year
- $150
- Best for
- Homeowners who want fast, high volume filtered water
- Main downside
- PFOA and PFOS are not on its certification listing