Aquasana AQ-5300+ Max Flow vs Brondell H2O+ Circle — Which Should You Buy?

Side-by-side comparison of Aquasana AQ-5300+ Max Flow and Brondell H2O+ Circle. We compare specs, performance, and value to help you decide.

Updated 2026-03-09 Independently reviewed
Aquasana AQ-5300+ Max Flow

Aquasana AQ-5300+ Max Flow

8.8/10
$149 /one-time
VS
Brondell H2O+ Circle

Brondell H2O+ Circle

8.4/10
$129 /one-time

Feature Comparison

Feature Aquasana AQ-5300+ Max Flow Brondell H2O+ Circle
Type Carbon + prefilter 3-stage carbon
Capacity 800 gallons 1,320 gallons
Flow Rate 0.72 GPM 0.5 GPM
Prefilter Sediment —
Removes Lead, PFOA, chlorine Chlorine, lead, cysts
Certification NSF —
Filter Life 6 months 2 years
Warranty 1 year 1 year
Design — Compact circle
Installation — Under sink

Aquasana AQ-5300+ Max Flow

Pros

  • ✓Higher capacity
  • ✓Prefilter for sediment
  • ✓Faster flow
  • ✓Claryum technology
  • ✓NSF certified
  • ✓No electricity
  • ✓Easy filter change

Cons

  • ✗More expensive than 5200
  • ✗Doesn't remove fluoride
  • ✗Filter cost

Brondell H2O+ Circle

Pros

  • ✓2-year filter life
  • ✓1,320 gallon capacity
  • ✓Compact
  • ✓3-stage
  • ✓Removes lead, cysts
  • ✓Easy filter change
  • ✓Sleek design

Cons

  • ✗Not RO
  • ✗Lower flow
  • ✗Premium price for non-RO

Our Verdict

Aquasana AQ-5300+ Max Flow

The best under-sink filter for higher flow and sediment-heavy water.

Special Deal Available — See Offer

Brondell H2O+ Circle

The best under-sink filter for long filter life—2 years between replacements.

Price Drop Alert — View Deal Now

Our Methodology

We test each under-sink filter for contaminant reduction, installation ease, and long-term cost. No manufacturer has editorial influence.

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