Aquasana
AQ-5300+ Max Flow
$189.99
The Verdict
Consider the legacy AQ-5300+ when its performance sheet addresses your concern and you can install a dedicated faucet. Match AQ-5300+R replacements and distinguish the newer AQ-6300M before ordering; the inspected manufacturer sheet is not a refreshed independent directory check.
Best for:
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
Overview
Consider the legacy AQ-5300+ when its performance sheet addresses your concern and you can install a dedicated faucet. Match AQ-5300+R replacements and distinguish the newer AQ-6300M before ordering; the inspected manufacturer sheet is not a refreshed independent directory check.
Aquasana Claryum 3-Stage Max Flow Under Sink Water Filter
Price and availability may change.
Certification Receipt
The November 2, 2026 source check inspected the legacy AQ-5300+ manufacturer performance sheet and installation manual. The AQ-5300+ page names AQ-5300+R replacements and specific reduction results. AQ-5300, AQ-5300+ and the newer AQ-6300M are different identities: do not transfer a newer Max Flow claim or replacement family to this model. An active WQA directory listing was not independently refreshed in this check.
Sources: Aquasana performance data: AQ-5300+ page; Aquasana AQ-5300+ installation manual; Current Claryum Max Flow product identity
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
Consider the legacy AQ-5300+ when its performance sheet addresses your concern and you can install a dedicated faucet. Match AQ-5300+R replacements and distinguish the newer AQ-6300M before ordering; the inspected manufacturer sheet is not a refreshed independent directory check.
Aquasana Claryum 3-Stage Max Flow Under Sink Water Filter
$189.99
Price and availability may change.
| Full Specifications | |
|---|---|
| Form factor | Under-sink carbon |
| Evidence tier | Legacy model performance sheet checked |
| Certifier | WQA / NSF-ANSI standards |
| Certified standards | 42, 53, 401, P473-family claims |
| Primary claim receipt | Named AQ-5300+ reduction results in manufacturer performance sheet; do not inherit AQ-6300M claims |
| 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 per legacy model performance sheet |
| TDS reduction | No |
| Receipt checked | 2026-11-02 (see exact source scope) |
Frequently Asked Questions
Does the Aquasana AQ-5300+ reduce TDS?
Can I use off-brand replacement filters?
Sources and what they establish
A manufacturer statement, a certifier listing and a household fit check answer different questions. The scope below keeps them separate.
- Aquasana performance data: AQ-5300+ page
Aquasana · Accessed
Manufacturer-hosted performance sheet; page 3 covers AQ-5300+, not AQ-5300 or the newer AQ-6300M. This inspection is not a fresh WQA directory verification.
- Aquasana AQ-5300+ installation manual
Aquasana · Accessed
Exact legacy Max Flow installation, cold-water connection, faucet requirements and filter-change guidance.
- Current Claryum Max Flow product identity
Aquasana · Accessed
The current no-faucet product is labeled AQ-6300M-NF. Its newer claims are not transferred to AQ-5300+.
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Head-to-Head Comparisons
Aquasana Claryum 3-Stage Max Flow Under Sink Water Filter
$189.99
Price and availability may change.