APEC ROES-50 vs PUR PLUS FM-3700B — Which Should You Buy?
Side-by-side comparison of APEC ROES-50 and PUR PLUS FM-3700B. We compare specs, performance, and value to help you decide.
Feature Comparison
| Feature | APEC ROES-50 | PUR PLUS FM-3700B |
|---|---|---|
| Type | 5-stage RO | 2-stage carbon |
| Capacity | 50 GPD | 100 gallons |
| Removes | Lead, fluoride, chlorine | Lead, chlorine |
| Tank | 3 gallon | — |
| Waste Ratio | 4:1 | — |
| Installation | DIY | Under sink |
| Parts | USA | — |
| Warranty | 1 year | 90 days |
| Certification | — | NSF |
| Filter Life | — | 3 months |
| Faucet | — | Included |
APEC ROES-50
Pros
- ✓Budget RO
- ✓5-stage filtration
- ✓99% removal
- ✓50 GPD
- ✓Easy DIY install
- ✓Reliable
- ✓USA-made parts
Cons
- ✗Basic design
- ✗4:1 waste ratio
- ✗No remineralization
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
APEC ROES-50
The best budget RO system—proven performance at the lowest price point for reverse osmosis.
20% Off — Limited Time, Check NowPUR PLUS FM-3700B
The best budget under-sink filter—basic NSF-certified filtration at the lowest price.
Limited Offer — Check Today's PriceOur 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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