iSpring RCC7AK Black
Score: 88/100
Aquasana SmartFlow RO
Score: 92/100Rankings
The Aquasana SmartFlow® Reverse Osmosis System is a high-efficiency under-sink unit that removes 99.99% of 90 contaminants while restoring beneficial minerals. Its SmartFlow technology addresses common RO drawbacks like water waste and short filter life. It is best for homeowners prioritizing water quality and health who want remineralized, alkaline water.
The iSpring RCC7AK-BLK is a 6-stage under-sink reverse osmosis system certified by NSF/ANSI 58 to remove up to 99% of over 1,000 contaminants. It features an alkaline remineralization stage that restores minerals and pH balance, producing bottled-water quality taste without requiring electricity. It is best suited for homeowners seeking superior drinking water quality with bottled-water taste.
| Attribute | | |
|---|---|---|
0.052 GPM | 0.75 GPMbest | |
12 monthsbest | 12 monthsbest | |
6 stagesbest | 4 stages | |
97.9 %best | 96.4 % | |
| ↓ lower better | — | 40 PSIbest |
| ↓ lower better | 0 micronsbest | — |
| ↓ lower better | — | 1.5 ratiobest |
1 years | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Health & Safety(1) | ||
Certifications | NSF/ANSI 58 | NSF/ANSI 42, 53, 58, 401; WQA |
Installation & Compatibility(1) | ||
Installation Type | Under-Sink | Under Sink |
Filtration & Performance(3) | ||
Flow Rate (GPM) | 0.052 GPM | 0.75 GPM |
Filtration Stages (stages) | 6 stages | 4 stages |
TDS Reduction (%) | 97.9 % | 96.4 % |
Maintenance & Warranty(1) | ||
Warranty (years) | 1 years | 2 years |
Dimensions & Build(3) | ||
Height (inches) | 19.00 inches | 12.93 inches |
Width (inches) | 16.0 inches | 4.5 inches |
Depth (inches) | 15.5 inches | 15.0 inches |
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.
