Home Master TMA vs PUR PLUS FM-3700B — Which Should You Buy?

Side-by-side comparison of Home Master TMA and PUR PLUS FM-3700B. We compare specs, performance, and value to help you decide.

Updated 2026-03-09 Independently reviewed
Home Master TMA

Home Master TMA

8.7/10
$349 /one-time
VS
PUR PLUS FM-3700B

PUR PLUS FM-3700B

8.2/10
$45 /one-time

Feature Comparison

Feature Home Master TMA PUR PLUS FM-3700B
Type RO with pump 2-stage carbon
Waste Ratio 1:1 or better
Capacity 75 GPD 100 gallons
Removes 99% including fluoride Lead, chlorine
Pump Permeate pump
Stages 3
Tank 3.2 gallon
Warranty 1 year 90 days
Certification NSF
Filter Life 3 months
Installation Under sink
Faucet Included

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

PUR PLUS FM-3700B

Pros

  • Budget-friendly
  • NSF certified
  • Reduces lead, chlorine
  • 2-stage
  • Simple install
  • Dedicated faucet
  • Trusted brand

Cons

  • Basic filtration
  • Doesn't remove fluoride
  • Filter life 3 months

Our Verdict

Home Master TMA

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

Limited Offer — Check Today's Price

PUR PLUS FM-3700B

The best budget under-sink filter—basic NSF-certified filtration at the lowest price.

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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