iSpring RCC7P-AK
Score: 92/100
APEC Ultimate RO-90
Score: 85/100Rankings
The iSpring RCC7P-AK is a 6-stage under-sink reverse osmosis system designed to remove over 1,000 contaminants while restoring beneficial minerals. It features a built-in electric booster pump that ensures high efficiency and consistent performance in homes with low incoming water pressure. This makes it a maximum performance option for households with suboptimal 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 | | |
|---|---|---|
6 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) | 6 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) | 40 PSI | 50 PSI |
Features(1) | ||
Remineralization | true | false |
Products in the top-left offer the best value (high score, low price).
Professional sources consistently highlight the iSpring RCC7P-AK as a maximum performance option in its category, praising the addition of the booster pump and alkaline remineralization.
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.
“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 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.
