Independent product analysis
Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)
The lower-cost under-sink answer to documented PFAS or lead: certified to NSF/ANSI 53 for PFOA/PFOS and lead, without reverse osmosis wastewater.
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Under-Sink Filter · Activated Carbon (Claryum) · Aquasana
Product recordBest suited forCertified PFOA/PFOS and lead reduction (NSF/ANSI 53) plus chlorine taste (NSF/ANSI 42) at a kitchen tap, for far less than reverse osmosis.
Verified certifications Distinct certification standards on current, registry-checked evidence for this exact product. See Certification and claim scope below.2
Typical upkeep$80/year
PurityMap analysisThis profile evaluates where the product record fits, what its listed technology can address, and the constraints a household should check before buying.
Bottom line
The lower-cost under-sink answer to documented PFAS or lead: certified to NSF/ANSI 53 for PFOA/PFOS and lead, without reverse osmosis wastewater.
Match factors
- Certified for PFOA/PFOS and lead
- No reverse-osmosis wastewater
- Chlorine and chloramine taste reduction
Watch-outs
- Needs a dedicated faucet
- Not certified for fluoride, arsenic or nitrate
Assessment basis: Certification checked against the WQA Gold Seal listing for Aquasana (NSF/ANSI 53 and 42, Claryum 3-Stage Max Flow AQ-6300M) on 2026-09-24.
Which water problems is this relevant to?Each target in PurityMap’s evidence register for this product, with its state. Relevance starts with a documented water problem, then the treatment technology, then a product whose exact, current certification covers that target.
- PFOA Eligible · NSF/ANSI 53
- PFOS Eligible · NSF/ANSI 53
- Lead Eligible · NSF/ANSI 53
- Mercury Eligible · NSF/ANSI 53
- Asbestos Eligible · NSF/ANSI 53
- MTBE Eligible · NSF/ANSI 53
- VOC (chloroform surrogate) Eligible · NSF/ANSI 53
- Cyst Eligible · NSF/ANSI 53
- Aesthetic chlorine Eligible · NSF/ANSI 42
- Aesthetic chloramine Eligible · NSF/ANSI 42
- Microplastics Not established
Reported water finding→Activated Carbon (Claryum)→Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)
A capability listed here does not mean that contaminant is present in your water. Find your water system before deciding what treatment is relevant.
Certification and claim scope
One row per target in PurityMap's evidence register. Eligible means a current certification record for this exact product covers that target, checked in the certifier's registry within the last 90 days. Not established always comes with the reason.
| Target | Evidence | Certification | Checked |
|---|---|---|---|
| PFOA | ✓ Eligible | WQA · NSF/ANSI 53WQA Aquasana NSF/ANSI 53 | checked 2026-09-25 · recheck due 2026-12-24 |
| PFOS | ✓ Eligible | WQA · NSF/ANSI 53WQA Aquasana NSF/ANSI 53 | checked 2026-09-25 · recheck due 2026-12-24 |
| Lead | ✓ Eligible | WQA · NSF/ANSI 53WQA Aquasana NSF/ANSI 53 | checked 2026-09-25 · recheck due 2026-12-24 |
| Mercury | ✓ Eligible | WQA · NSF/ANSI 53WQA Aquasana NSF/ANSI 53 | checked 2026-09-25 · recheck due 2026-12-24 |
| Asbestos | ✓ Eligible | WQA · NSF/ANSI 53WQA Aquasana NSF/ANSI 53 | checked 2026-09-25 · recheck due 2026-12-24 |
| MTBE | ✓ Eligible | WQA · NSF/ANSI 53WQA Aquasana NSF/ANSI 53 | checked 2026-09-25 · recheck due 2026-12-24 |
| VOC (chloroform surrogate) | ✓ Eligible | WQA · NSF/ANSI 53WQA Aquasana NSF/ANSI 53 | checked 2026-09-25 · recheck due 2026-12-24 |
| Cyst | ✓ Eligible | WQA · NSF/ANSI 53WQA Aquasana NSF/ANSI 53 | checked 2026-09-25 · recheck due 2026-12-24 |
| Aesthetic chlorine | ✓ Eligible | WQA · NSF/ANSI 42WQA Aquasana NSF/ANSI 42 | checked 2026-09-25 · recheck due 2026-12-24 |
| Aesthetic chloramine | ✓ Eligible | WQA · NSF/ANSI 42WQA Aquasana NSF/ANSI 42 | checked 2026-09-25 · recheck due 2026-12-24 |
| Microplastics | Not establishedEvidence insufficient to verify this product for Microplastics. | Listing checked: WQA asserted in manufacturer sheet · NSF/ANSI 401 (not established for this product)Aquasana AQ-6300M performance sheet | No current check recorded |
Not suitable for
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
- Anyone who can't plumb, drill or hire an installer
- Renters who can't modify plumbing
Test first
- Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.
- A tap test can confirm levels at your home before you choose treatment.
Installation, ownership, and maintenanceCapacity and upkeep are planning figures from the product record, not guarantees. Actual replacement timing depends on use, influent water, flow, and manufacturer instructions.
ManufacturerAquasana
Model numberAQ-6300M
Installation formatUnder-Sink Filter
DimensionsUnder-sink canisters with a dedicated faucet
Typical annual upkeep$80
Limitations and tradeoffs
- Not a reverse-osmosis system: not certified for fluoride, arsenic, nitrate or PFHxS.
- Needs a dedicated faucet and under-sink space; renters should ask the landlord.
- Replace the cartridges on schedule; spent cartridges stop reducing lead and PFAS.
- Needs a dedicated faucet (drilling)
- Takes under-sink space
No filter treats every water problem. This analysis does not replace household testing, installation requirements, or the manufacturer’s current performance data sheet.
Manufacturer claims we could not verifyThese appear in manufacturer or retailer material but are not backed by a certification PurityMap could confirm. Treat them as unverified.
- Retail listings mention further contaminants (for example microplastics); only the NSF/ANSI 42 and 53 claims above are in the WQA listing.