Aquasana AQ-5300+ Max Flow
Aquasana
99.3% lead removal
The Aquasana AQ-5300+ is NSF-53 certified for lead reduction, removing up to 99.3% of lead from drinking water. Its 3-stage Claryum filtration technology achieves this without reverse osmosis, meaning it retains healthy minerals while removing harmful contaminants. The Max Flow version resolves earlier flow rate complaints.
Key Features
- 99.3% lead removal (NSF-53 certified)
- 3-stage Claryum filtration retains minerals
- Also removes PFAS, chloramine, and 77+ contaminants
- 0.5 GPM Max Flow rate
Our Review
The Aquasana AQ-5300+ earns our top pick for lead removal because it combines NSF-53 certified 99.3% lead reduction with mineral retention that RO systems cannot match. Its Claryum technology uses catalytic carbon, ion exchange, and sub-micron filtration in a compact 3-stage design. The Max Flow version resolved the slower flow rate of the original model. At $130/year for filters, it costs more than RO long-term but produces zero wastewater. Reddit users on r/Plumbing frequently recommend it for homes with lead concerns.
Pros
- +99.3% lead removal with NSF-53 certification
- +Retains beneficial minerals (calcium, magnesium)
- +No wastewater produced (unlike RO systems)
- +Also NSF P473 certified for PFAS removal
- +Compact design fits most under-sink cabinets
Cons
- -Higher annual filter cost than RO ($130/yr)
- -Does not remove fluoride or TDS
- -Requires some plumbing for installation
- -Flow rate slower than whole-house systems
Specifications
Stages
3-stage
Flow Rate
0.5 GPM
Capacity
800 gal
Filter Life
6 months
Annual Filter Cost
$130/year
Warranty
1 year
