APEC Essence ROES-PH75
Score: 82/100
iSpring RCC7AK Black
Score: 85/100Rankings
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. Best suited for homeowners seeking superior drinking water quality with bottled-water taste.
The APEC Water Systems ROES-PH75 Essence Series is a 6-stage under-sink reverse osmosis system rated at 75 gallons per day, designed to produce alkaline mineral-enhanced water by adding high-purity calcium carbonate. It features a solid metal frame for durability, large-capacity block filters for extended life, and an eco-friendly low waste ratio with automatic shut-off. It is ideal for families wanting 99% contaminant removal plus pH boost for taste and health preferences.
| Attribute | | |
|---|---|---|
6 stagesbest | 6 stagesbest | |
75 gallons per daybest | 75 gallons per daybest | |
99 percentbest | 97.9 percent | |
4 gallonsbest | — | |
— | 1,000 countbest | |
| ↓ lower better | 5.25 inchesbest | 16 inches |
| ↓ lower better | 17.5 inchesbest | 19 inches |
40 PSIbest | 40 PSIbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Compliance & Safety(1) | ||
Certifications | WQA Certified | NSF/ANSI 58 |
Storage(1) | ||
Storage Tank Capacity (gallons) | 4 gallons | Not specified gallons |
General(1) | ||
Installation Type | Under Sink | Under-sink |
Design(2) | ||
System Width (inches) | 5.25 inches | 16.0 inches |
System Height (inches) | 17.5 inches | 19.0 inches |
Performance(4) | ||
TDS Reduction Rate (percent) | 99 percent | 97.9 percent |
Wastewater Ratio | Low | Not specified |
Contaminants Removed (count) | null count | 1000 count |
Feed Water Pressure (PSI) | 40 PSI | 40-80 PSI |
Features(1) | ||
Faucet Type | Brushed Nickel | Black |
Products in the top-left offer the best value (high score, low price).
Search results lack in-depth expert reviews from major testing sites like Wirecutter or Consumer Reports. Product pages emphasize manufacturer guarantees of premium components and 2x contaminant removing capacity. A YouTube installer/review video highlights successful installation and TDS reduction testing, positioning the system as worthwhile for clean water.
Limited direct quotes are available, but Home Depot and Lowe's pages note high engagement with 246 questions and answers. Common inferred praise includes effective TDS reduction and easy DIY installation. Recurring complaints are not detailed, though potential issues from similar RO systems include initial setup plumbing challenges.
