Express Water RO5 vs Brondell H2O+ Circle — Which Should You Buy?

Side-by-side comparison of Express Water RO5 and Brondell H2O+ Circle. We compare specs, performance, and value to help you decide.

Updated 2026-03-09 Independently reviewed
Express Water RO5

Express Water RO5

8.6/10
$249 /one-time
VS
Brondell H2O+ Circle

Brondell H2O+ Circle

8.4/10
$129 /one-time

Feature Comparison

Feature Express Water RO5 Brondell H2O+ Circle
Type 5-stage RO 3-stage carbon
Capacity 75 GPD 1,320 gallons
Stages 5 (+ UV/alkaline options) —
Removes Lead, arsenic, fluoride Chlorine, lead, cysts
Tank 3.2 gallon —
UV Optional —
Alkaline Optional —
Warranty 1 year 1 year
Filter Life — 2 years
Design — Compact circle
Installation — Under sink
Flow Rate — 0.5 GPM

Express Water RO5

Pros

  • ✓5-stage RO
  • ✓UV optional
  • ✓Alkaline optional
  • ✓Removes 99%
  • ✓Fast flow
  • ✓3.2-gal tank
  • ✓Good for large families

Cons

  • ✗Add-ons increase cost
  • ✗Standard waste ratio
  • ✗Bulky under sink

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

Express Water RO5

The best under-sink RO with upgrade options for UV and alkaline water.

Limited Offer — Check Today's Price

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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