Aquasana AQ-5200 vs iSpring RCC7AK 6-Stage RO — Which Should You Buy?
Side-by-side comparison of Aquasana AQ-5200 and iSpring RCC7AK 6-Stage RO. We compare specs, performance, and value to help you decide.
Feature Comparison
| Feature | Aquasana AQ-5200 | iSpring RCC7AK 6-Stage RO |
|---|---|---|
| Type | Carbon block | 6-stage RO |
| Certification | NSF | — |
| Removes | Lead, PFOA, PFOS, microplastics | Lead, arsenic, fluoride, PFAS |
| Capacity | 500 gallons | 75 GPD |
| Filter Life | 6 months | — |
| Electricity | None | — |
| Installation | Under sink | — |
| Warranty | 1 year | 1 year |
| Stages | — | 6 (including alkalinity) |
| Remineralization | — | Yes |
| Tank | — | 3.2 gallon |
| Waste Ratio | — | 4:1 |
Aquasana AQ-5200
Pros
- ✓NSF certified
- ✓Removes lead, PFOA, PFOS
- ✓No electricity
- ✓No tank
- ✓Easy installation
- ✓Affordable
- ✓Good flow rate
Cons
- ✗Not RO
- ✗Filter replacements ~$60
- ✗Doesn't remove fluoride
iSpring RCC7AK 6-Stage RO
Pros
- ✓99%+ contaminant removal
- ✓6-stage RO
- ✓Remineralization
- ✓Removes fluoride
- ✓Great value
- ✓75 GPD
- ✓Includes tank and faucet
Cons
- ✗Traditional tank design
- ✗4:1 waste ratio
- ✗Slower flow than tankless
Our Verdict
Aquasana AQ-5200
The best value under-sink filter—NSF-certified contaminant removal without the cost of RO.
Special Deal Available — See OfferiSpring RCC7AK 6-Stage RO
The best value RO system—full 6-stage filtration with mineral addition at a mid-range price.
Special Deal Available — See OfferOur 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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