The RCC7AK is the best budget RO system: NSF/ANSI 58 certified, no electricity needed, and about $81 a year in filters. It wastes more water and takes more cabinet space than tankless systems.
Key specs
| RCC7AK | |
|---|---|
| Price | $229.99 list |
| Type | 3.2 gal tank |
| Gallons per day | 75 |
| Pure to drain | About 1:3 (reported) |
| Certified to | NSF/ANSI 58 |
| Power | No electricity |
| Filters per year | About $81 |
| Warranty | See iSpring |
| Model | RCC7AK |
Filtration
Six stages, including an alkaline remineralization filter that adds some minerals back for taste. Rated at 75 GPD, certified to NSF/ANSI 58, with a 3.2-gallon tank.
Filter costs
A one-year replacement set costs about $81.
For ice makers
The alkaline stage adds back a little of the mineral content that causes scale. It's minor, but if you're filtering mainly for your ice maker, a system without remineralization is slightly better.
This review is based on iSpring's published specifications, the owner's manual where available, independent test reports and owner feedback, compared against the other models we track. We'll add hands-on notes as our testing progresses.
Questions
Does the RCC7AK need power?
No. It runs on your home's water pressure.
