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Installed under-sink carbonUnder-sink carbon
Aquasana Claryum 3-Stage Max Flow (AQ-6300-BN)
A carbon under-sink system for lead/PFAS class concerns when you do not want RO.
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Best fit
People who want an installed under-sink filter but prefer carbon filtration over reverse osmosis.
Not a fit if
Fluoride/TDS reduction, where RO is the better system type.
Certification evidence
This table comes from our product-level certification map, not from a brand-level assumption. We separate verified third-party claims from caveated manufacturer-stated claims.
| Standard | Claim scope | Status |
|---|---|---|
| NSF/ANSI 42 | Drinking Water Treatment Units, Aesthetic Effects (Plumbed-In to Separate Tap) | Verified |
| NSF/ANSI 53 | Drinking Water Treatment Units, Health Effects (Plumbed-In to Separate Tap) | Verified |
| NSF/ANSI 401 | Emerging Compounds and Incidental Contaminants | Verified |
| NSF/ANSI/CAN 372 | Lead Content (lead-free system materials) | Verified |
Verified reductions / claims
- NSF/ANSI 42: Aesthetic Chloramine, Aesthetic Chlorine, Nominal Particulate Class I, Taste and Odor
- NSF/ANSI 53: Asbestos, Cyst, Lead, Mercury, MTBE, PFOS, PFOA, Turbidity, VOC (as chloroform)
- NSF/ANSI 401: Atenolol, Bisphenol A, Carbamazepine, DEET, Estrone, Ibuprofen, Linuron, Meprobamate, Metolachlor, Microplastics, Naproxen, Nonyl Phenol, Phenytoin, TCEP, TCPP, Trimethoprim
- NSF/ANSI/CAN 372: materials / system-component certification; not a contaminant-reduction list