PUR PLUS FM-3700B Review

Basic 2-stage under-sink filter with NSF certification.

Updated 2026-03-09 Independently reviewed
PUR PLUS FM-3700B
8.2/10
$45
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Overview

The PUR PLUS FM-3700B is a simple 2-stage under-sink filter that reduces lead and chlorine. NSF certified for contaminant reduction. Budget-friendly design with a dedicated faucet. Good entry-level option for those who don't need RO.

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Pros & Cons

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

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Specifications

Type 2-stage carbon
Certification NSF
Removes Lead, chlorine
Filter Life 3 months
Capacity 100 gallons
Installation Under sink
Faucet Included
Warranty 90 days

Our Verdict

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

8.2 / 10
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