Waterdrop G3P800 Tankless RO vs Home Master TMA — Which Should You Buy?

Side-by-side comparison of Waterdrop G3P800 Tankless RO and Home Master TMA. We compare specs, performance, and value to help you decide.

Updated 2026-03-09 Independently reviewed
Waterdrop G3P800 Tankless RO

Waterdrop G3P800 Tankless RO

9.3/10
$449 /one-time
VS
Home Master TMA

Home Master TMA

8.7/10
$349 /one-time

Feature Comparison

Feature Waterdrop G3P800 Tankless RO Home Master TMA
Type Tankless RO RO with pump
Contaminant Removal 99.99% —
Capacity 800 GPD 75 GPD
Waste Ratio 3:1 1:1 or better
UV Yes —
Remineralization Yes —
Installation Under sink —
Faucet Smart display —
Warranty 1 year 1 year
Removes — 99% including fluoride
Pump — Permeate pump
Stages — 3
Tank — 3.2 gallon

Waterdrop G3P800 Tankless RO

Pros

  • ✓99.99% contaminant removal
  • ✓UV purification
  • ✓800 GPD tankless
  • ✓3:1 waste ratio
  • ✓Remineralization filter
  • ✓No tank needed
  • ✓Smart faucet display

Cons

  • ✗Premium price
  • ✗Requires power
  • ✗Complex installation

Home Master TMA

Pros

  • ✓Permeate pump
  • ✓1:1 waste ratio
  • ✓99% removal
  • ✓Removes fluoride
  • ✓3-stage simplicity
  • ✓Artesian full contact
  • ✓Less water waste

Cons

  • ✗Requires power
  • ✗Higher price
  • ✗More complex

Our Verdict

Waterdrop G3P800 Tankless RO

The best overall under-sink filter—premium RO with UV and remineralization for the ultimate in drinking water quality.

20% Off — Limited Time, Check Now

Home Master TMA

The best under-sink RO for eco-conscious buyers—minimal water waste with permeate pump.

Limited Offer — Check Today's Price

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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