iSpring RCC7AK 6-Stage RO vs Aquasana AQ-5300+ Max Flow — Which Should You Buy?
Side-by-side comparison of iSpring RCC7AK 6-Stage RO and Aquasana AQ-5300+ Max Flow. We compare specs, performance, and value to help you decide.
Feature Comparison
| Feature | iSpring RCC7AK 6-Stage RO | Aquasana AQ-5300+ Max Flow |
|---|---|---|
| Type | 6-stage RO | Carbon + prefilter |
| Capacity | 75 GPD | 800 gallons |
| Stages | 6 (including alkalinity) | — |
| Removes | Lead, arsenic, fluoride, PFAS | Lead, PFOA, chlorine |
| Remineralization | Yes | — |
| Tank | 3.2 gallon | — |
| Waste Ratio | 4:1 | — |
| Warranty | 1 year | 1 year |
| Flow Rate | — | 0.72 GPM |
| Prefilter | — | Sediment |
| Certification | — | NSF |
| Filter Life | — | 6 months |
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
Aquasana AQ-5300+ Max Flow
Pros
- ✓Higher capacity
- ✓Prefilter for sediment
- ✓Faster flow
- ✓Claryum technology
- ✓NSF certified
- ✓No electricity
- ✓Easy filter change
Cons
- ✗More expensive than 5200
- ✗Doesn't remove fluoride
- ✗Filter cost
Our Verdict
iSpring 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 OfferAquasana AQ-5300+ Max Flow
The best under-sink filter for higher flow and sediment-heavy water.
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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