Aquasana
Aquasana AQ-5300+ Max Flow Under-Sink
Three-stage under-sink filter. NSF/ANSI P473 certified for PFOA + PFOS reduction.
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Our take
Aquasana's AQ-5300+ is the easiest path to NSF P473 certification under the sink without going to reverse osmosis. Three-stage filtration, dedicated faucet, ~600 gallons per filter set (about a year for a household of 2). Holds NSF P473 certification specifically for PFOA + PFOS — that is the regulatory checkbox the average person actually wants. Install is more involved than a pitcher but easier than RO.
Pros
- NSF/ANSI P473 certified for PFAS
- Long filter life (~600 gallons)
- Faucet included, no electricity
Cons
- Permanent installation
- Requires room under sink
- Filter replacements are bundled (3 stages)
Citations
- [1]NSF/ANSI P473 certified for PFOA and PFOS reduction — Aquasana AQ-5300+ product page