iSpring RCC7
Score: 85/100
Express Water RO5DX
Score: 88/100Rankings
The Express Water RO5DX is a compact 5-stage under-sink reverse osmosis system featuring NSF/ANSI 58 certification and alkaline remineralization for improved taste. It offers a 50 GPD production rate and includes a leak detection shutoff for added safety. While it lacks the high capacity of larger systems, its pre-assembled design and remineralization feature make it a strong contender for standard households.
The iSpring RCC7 is a robust 5-stage under-sink reverse osmosis system certified by NSF/ANSI 58, designed to remove up to 99% of over 1,000 harmful contaminants. It offers a high 75 GPD production rate without requiring a power source, making it a reliable choice for large households. However, it lacks the remineralization and UV sterilization features found in more advanced models.
| Attribute | | |
|---|---|---|
5 stagesbest | 5 stagesbest | |
75 gallons per daybest | 50 gallons per day | |
85 percent | 96 percentbest | |
2 gallons | 4 gallonsbest | |
1,000 countbest | 1,000 countbest | |
6 months | 12 monthsbest | |
| ↓ lower better | 8 inches | 5 inchesbest |
| ↓ lower better | 18 inches | 15 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Tank Capacity (gallons) | 2 gallons | 4 gallons |
Maintenance(1) | ||
Filter Lifespan (months) | 6 months | 12 months |
Design(2) | ||
System Width (inches) | 8.0 inches | 5.0 inches |
System Height (inches) | 18.0 inches | 15.0 inches |
Performance(2) | ||
Daily Production Rate (gallons per day) | 75 gallons per day | 50 gallons per day |
TDS Reduction Rate (percent) | 85 percent | 96 percent |
Features(2) | ||
Remineralization | false | true |
Faucet Type | Brushed Nickel | Chrome |
Products in the top-left offer the best value (high score, low price).
Professional assessments highlight the iSpring RCC7's robust NSF certification and comprehensive contaminant removal capabilities, positioning it as a reliable best-seller.
Everyday users report satisfaction with the clean, safe, and good-tasting water produced by the system, noting it is superior to bottled water.
Professional reviewers highlight the RO5DX's NSF/ANSI 58 certification as a key strength, validating its TDS reduction capabilities and material safety.
Users generally praise the system for its reliable performance, compact size, and the peace of mind provided by NSF certification.
