Under-Sink · Filter Review
Clearly Filtered 3-Stage Under-Sink System
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Score breakdown
See the scoring rubric for how each weight is computed.
Certifications
Our Take
Clearly Filtered's under-sink system is our top pick for carbon-based PFAS removal. Unlike reverse osmosis, it doesn't waste water and retains healthy minerals while removing 99.5% of PFAS compounds. The NSF P473 certification specifically tests for PFOA and PFOS removal — a more rigorous standard than generic NSF 53.
Pros
- + NSF P473 certified specifically for PFAS removal
- + No water waste — unlike RO systems
- + Retains beneficial minerals
Cons
- − Replacement filters are pricey (~$90 every 6 months)
- − Lower flow rate than standard faucets
Best For
Homes with MODERATE PFAS levels who want high removal rates without RO waste water
Filter Technology
Recommended For Risk Levels
Clearly Filtered 3-Stage Under-Sink System
99.5% removal · $550 · NSF 53 · NSF P473
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