
iSpring RCC7AK-UV
Score: 90/100
APEC Ultimate RO-90
Score: 85/100Rankings

The iSpring RCC7AK-UV is a 7-stage under-sink reverse osmosis system that combines mechanical filtration with alkaline remineralization and UV sterilization. It offers a high 75 GPD flow rate and NSF/ANSI 58 certification, making it ideal for well water users and larger households. The inclusion of UV sterilization is a standout feature, though it requires adequate feed water pressure.

The APEC Water Systems RO-90 Ultimate Series is a WQA-certified, 5-stage under-sink reverse osmosis filtration system designed to produce 90 gallons of ultra-pure water per day. It features a durable metal frame, US-made filters with extended lifespan, and a 4-gallon storage tank to support households of four or more people. It is ideal for daily drinking and cooking in areas with high contaminants like lead, arsenic, or fluoride.
| Attribute | ![]() | ![]() |
|---|---|---|
7 stagesbest | 5 stages | |
75 gallons per day | 90 gallons per daybest | |
97.9 percent | 100 percentbest | |
2 gallons | 4 gallonsbest | |
1,000 countbest | — | |
6 months | 12 monthsbest | |
| ↓ lower better | 8 inches | 5.25 inchesbest |
| ↓ lower better | 18 inches | 17.5 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compliance & Safety(1) | ||
Certifications | NSF/ANSI 58 | WQA Gold Seal |
Storage(1) | ||
Storage Tank Capacity (gallons) | 2 gallons | 4 gallons |
General(1) | ||
Installation Type | Under-sink | Under Sink |
Maintenance(1) | ||
Filter Lifespan (months) | 6 months | 12 months |
Design(2) | ||
System Width (inches) | 8.0 inches | 5.25 inches |
System Height (inches) | 18.0 inches | 17.5 inches |
Power(1) | ||
Power Requirement | true | false |
Performance(5) | ||
Filtration Stages (stages) | 7 stages | 5 stages |
Daily Production Rate (gallons per day) | 75 gallons per day | 90 gallons per day |
TDS Reduction Rate (percent) | 97.9 percent | 100 percent |
Contaminants Removed (count) | 1000 count | null count |
Feed Water Pressure (PSI) | 45 PSI | 50 PSI |
Features(2) | ||
Remineralization | true | false |
Faucet Type | Brushed Nickel | Chrome |

Products in the top-left offer the best value (high score, low price).

Professional reviewers characterize the iSpring RCC7AK-UV as a solid, budget-friendly option that delivers effective filtration, highlighting its NSF certifications and remineralization capabilities.
Everyday users express strong satisfaction with the product, reflected in a high rating on major retail platforms, praising the clean taste and peace of mind.




Professional reviewers from sources like Lowe's and Home Depot highlight the RO-90's premium quality, WQA certification, and superior contaminant removal capabilities. They praise the durable metal construction, eco-friendly design, and the longevity of US-made filters, positioning the system as virtually maintenance-free with a crisp taste that outperforms bottled water.
Everyday users consistently praise the excellent water quality and taste, noting significant reductions in Total Dissolved Solids (TDS). Common themes include satisfaction with the easy installation process, the long lifespan of the filters, and the overall value for obtaining pure water for growing families.