iSpring RCC7AK 6-Stage RO vs Brondell H2O+ Circle — Which Should You Buy?

Side-by-side comparison of iSpring RCC7AK 6-Stage RO and Brondell H2O+ Circle. We compare specs, performance, and value to help you decide.

Updated 2026-03-09 Independently reviewed
iSpring RCC7AK 6-Stage RO

iSpring RCC7AK 6-Stage RO

8.9/10
$220 /one-time
VS
Brondell H2O+ Circle

Brondell H2O+ Circle

8.4/10
$129 /one-time

Feature Comparison

Feature iSpring RCC7AK 6-Stage RO Brondell H2O+ Circle
Type 6-stage RO 3-stage carbon
Capacity 75 GPD 1,320 gallons
Stages 6 (including alkalinity)
Removes Lead, arsenic, fluoride, PFAS Chlorine, lead, cysts
Remineralization Yes
Tank 3.2 gallon
Waste Ratio 4:1
Warranty 1 year 1 year
Filter Life 2 years
Design Compact circle
Installation Under sink
Flow Rate 0.5 GPM

iSpring RCC7AK 6-Stage RO

Pros

  • 99%+ contaminant removal
  • 6-stage RO
  • Remineralization
  • Removes fluoride
  • Great value
  • 75 GPD
  • Includes tank and faucet

Cons

  • Traditional tank design
  • 4:1 waste ratio
  • Slower flow than tankless

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

iSpring RCC7AK 6-Stage RO

The best value RO system—full 6-stage filtration with mineral addition at a mid-range price.

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.

Related Comparisons