iSpring RCC7P-AK
Score: 92/100
Aquasana SmartFlow RO
Score: 88/100Rankings
The iSpring RCC7P-AK is a 6-stage under-sink reverse osmosis system designed to remove over 1,000 contaminants while restoring beneficial minerals through an alkaline remineralization filter. It features a built-in electric booster pump that ensures high efficiency and consistent performance in homes with low incoming water pressure (below 45 PSI). It is best suited for households with low water pressure or larger families seeking mineral-balanced drinking water.
The Aquasana SmartFlow® is a high-efficiency reverse osmosis system that excels at removing a wide spectrum of contaminants, including PFAS and fluoride, while retaining beneficial minerals through its remineralization stage. Its patented SmartFlow® technology significantly reduces water waste compared to standard RO units, making it an eco-friendly choice. It is best suited for health-conscious households prioritizing water purity and taste in areas with moderate water hardness.
| Attribute | | |
|---|---|---|
— | 0.75 gallons per minutebest | |
— | 12 monthsbest | |
6best | 4 | |
1 years | 2 yearsbest | |
| ↓ lower better | 18 inches | 12.93 inchesbest |
| ↓ lower better | 8 inches | 4.5 inchesbest |
| ↓ lower better | 15 inchesbest | 15 inchesbest |
97.9 percentbest | 96.4 percent |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Value & Warranty(1) | ||
Warranty (years) | 1 years | 2 years |
Dimensions & Fit(2) | ||
Height (inches) | 18.0 inches | 12.93 inches |
Width (inches) | 8.0 inches | 4.5 inches |
Performance & Filtration(4) | ||
Certifications | NSF/ANSI 58 | WQA, NSF/ANSI 42, 53, 58, 401, CSA B483.1 |
Contaminants Removed | PFAS, PFOA, PFOS, Chlorine, Arsenic, THMs, Calcium, Sodium, Sulfur | Fluoride, PFAS, Arsenic, Lead, Chlorine, PFOA/PFOS, Microplastics, Nitrates, Nitrites, Mercury, VOCs, Chromium 6, TDS, Asbestos, Pharmaceuticals |
Filtration Stages | 6 | 4 |
TDS Reduction (percent) | 97.9 percent | 96.4 percent |
Installation & Compatibility(2) | ||
Installation Type | Under-sink | Under Sink |
Operating Pressure (psi) | Below 45 psi | 40-80 psi |
Professional sources consistently highlight the iSpring RCC7P-AK as a maximum performance option in its category. Reviewers specifically praise the addition of the booster pump and alkaline remineralization as distinguishing features that address common reverse osmosis system shortcomings, such as low flow in low-pressure homes and acidic water production.
Everyday users report noticeable taste improvements after three months of use, describing the water as having a smooth, slightly sweet profile that feels healthier than tap water. Common praise includes reliable daily performance for essential household needs and the booster pump operating nearly inaudibly.
“removes impurities flawlessly, leaving water that is crystal-clear with a crisp, refreshing taste”
“smooth, slightly sweet profile and more natural taste compared to standard RO water”
“barely heard over normal kitchen activity”
Professional reviewers highlight the Aquasana SmartFlow® as a top-tier reverse osmosis system due to its exceptional contaminant removal capabilities and patented SmartFlow® technology. Experts emphasize that the system effectively mitigates common RO drawbacks like water waste and short filter life.
Users consistently praise the system for its high contaminant removal effectiveness, specifically noting the reduction of PFAS, lead, and fluoride. The compact design and easy, tool-free maintenance are frequently cited as major advantages for everyday use.
