Model-level certification receipts

Last updated June 18, 2026

Aquasana

AQ-5300+ Max Flow

Name: Aquasana Claryum 3-Stage Max Flow Under Sink Water Filter
Brand: Aquasana
Price: 189.99 USD
Availability: InStock
Rating: 9.1 (1 reviews)

$189.99

9.1

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Claim Receipt

Exact model, exact claim boundary.

This is the evidence snapshot Filter Report uses before ranking the product. It is not a tap-water test, medical claim, or guarantee for unlisted replacement cartridges.

Open listing

Amazon ASIN

B06XGZMTRH

Exact model

AQ-5300+ Max Flow

Replacement element

AQ-5300+R / AQ-C3M-R family

Certifier

WQA / NSF-ANSI standards

Standards named

42, 53, 401, P473-family claims

Receipt checked

2026-06-18

Listing status

In Stock

Annual filters

$180

Claim being treated as the current receipt

Lead, chlorine, PFOA/PFOS-related, cyst, VOC, and emerging-compound claims require model/element match

Boundary language

Say certified to reduce only for the listed model, element, standard, and contaminant. Do not inherit these claims for third-party cartridges, private wells, boil-water events, or unknown source water.

The Verdict

The Aquasana AQ-5300+ is the strongest launch pick when the buyer wants a serious under-sink carbon system with a clear certification trail. It is not a whole-water safety answer, but it is a clean first recommendation for certified lead, PFAS-related, chlorine, and emerging-compound claims when the current listing still matches the sold unit.

Best for:

Lead and PFAS concernUnder-sink installsTaste and chlorine

Pros & Cons

Pros

Strong third-party certification story for NSF/ANSI 42, 53, and 401 claims when paired with the listed Claryum elements
Under-sink faucet workflow gives better everyday flow than pitcher filters
Keeps a non-RO footprint for buyers who do not want drain-line wastewater or tank maintenance

Cons

Requires an under-sink install and a dedicated dispenser faucet
Replacement cartridges are a meaningful annual cost
Does not reduce TDS, which can confuse buyers expecting RO-style meter changes

At a Glance

Under-sink carbonForm factor

WQA / NSF-ANSI standardsCertifier

42, 53, 401, P473-family claimsCertified standards

Up to 800 gal / about 6 monthsService cycle

180 USDEst. annual filters

Overview

The Aquasana AQ-5300+ is the best launch pick for buyers who want a serious under-sink carbon system without moving into reverse osmosis. Its strength is the certification trail around the Claryum system and replacement elements, not a vague promise that all tap-water concerns disappear.

Choose it when you can use a dedicated faucet, want stronger lead/PFAS-related claim receipts than a basic pitcher, and prefer normal-flow drinking water over RO tank refills.

Aquasana Claryum 3-Stage Max Flow Under Sink Water Filter

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Price and availability may change.

Certification Receipt

Filter Report treats the AQ-5300+ as a strong receipt product because the public claim trail names NSF/ANSI 42, 53, and 401-style reductions for the system and Claryum replacement elements. The important caveat is model matching: the claim belongs to the listed system and cartridge, not every Aquasana product or third-party replacement.

Ownership Tradeoffs

The system needs under-sink space and a dispenser faucet. In exchange, it avoids the slow refill cycle of pitchers and the wastewater, tank, and membrane maintenance of RO. Replacement cartridges are not cheap, so the annual cost should be part of the buying decision.

Who Should Skip It

Skip this if your main goal is TDS reduction, if your sink cannot accept a dispenser faucet, or if you need private-well or microbiological advice. Those cases need water testing and a different treatment path.

Filter Report Verdict

How We Evaluate This

We separate certified, tested, claimed, and pending evidence, then score the filter by buyer fit, replacement economics, installation burden, and claim restraint.

See the full method →

Aquasana Claryum 3-Stage Max Flow Under Sink Water Filter

$189.99

Buy on Amazon

Price and availability may change.

Full Specifications
Form factor	Under-sink carbon
Evidence tier	Strong certifier receipt
Certifier	WQA / NSF-ANSI standards
Certified standards	42, 53, 401, P473-family claims
Primary claim receipt	Lead, chlorine, PFOA/PFOS-related, cyst, VOC, and emerging-compound claims require model/element match
Service cycle	Up to 800 gal / about 6 months
Est. annual filters	180USD
Flow	0.72gpm
Install burden	Dedicated faucet, under-sink
Replacement element	AQ-5300+R / AQ-C3M-R family
TDS reduction	No
Receipt checked	2026-06-18

Frequently Asked Questions

Does the Aquasana AQ-5300+ reduce TDS?

No. That is expected for this kind of carbon/ion-exchange system. TDS reduction is usually an RO or ion-exchange pitcher job, not the proof that a carbon filter is working.

Can I use off-brand replacement filters?

Only if you are willing to give up the original claim trail. A compatible cartridge needs its own certification receipt before it should inherit the AQ-5300+ claims.