
iSpring RCC7AK
Score: 87/100
Waterdrop UA-5Y
Score: 92/100Rankings

The Waterdrop UA-5Y is a compact under-sink filtration system featuring a 5-year filter lifespan and NSF/ANSI 372 certification for lead reduction. It offers easy, tool-free installation and effective removal of common contaminants like chlorine and microplastics. It is best suited for budget-conscious users seeking low-maintenance filtration in compact kitchen spaces.

The iSpring RCC7AK is a 6-stage reverse osmosis system with full-system NSF/ANSI 58 certification, designed to remove contaminants while restoring minerals for better taste. It requires adequate water pressure (45-70 psi) and may need a booster pump for low-pressure homes. It is best suited for health-conscious consumers prioritizing mineral content and neutral pH balance.
| Attribute | ![]() | ![]() |
|---|---|---|
0.052 gallons per minute | 0.75 gallons per minutebest | |
— | 60 monthsbest | |
6best | 5 | |
1 years | 5 yearsbest | |
| ↓ lower better | 19 inches | 16.7 inchesbest |
| ↓ lower better | 5.1 inches | 3.6 inchesbest |
| ↓ lower better | 15.5 inches | 3.9 inchesbest |
95 percentbest | 0 percent |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Value & Warranty(1) | ||
Warranty (years) | 1 years | 5 years |
Dimensions & Fit(3) | ||
Height (inches) | 19.0 inches | 16.7 inches |
Width (inches) | 5.1 inches | 3.6 inches |
Depth (inches) | 15.5 inches | 3.9 inches |
Performance & Filtration(8) | ||
Certifications | NSF/ANSI 58 | NSF/ANSI 372, IAPMO R&T Tested |
Contaminants Removed | 99% | Chlorine, Lead, Mercury, PFOA/PFOS, Microplastics, VOCs (partial), Taste/Odor |
Flow Rate (gallons per minute) | 0.052 gallons per minute | 0.75 gallons per minute |
Filter Life (months) | null months | 60 months |
Filtration Stages | 6 | 5 |
Filter Capacity (gallons) | null gallons | gallons |
Filtration Technology | Reverse Osmosis | Activated Carbon Block |
TDS Reduction (percent) | 95 percent | 0 percent |
Features & Accessories(1) | ||
Included Faucet | true | false |
Installation & Compatibility(2) | ||
Operating Pressure (psi) | 70 psi | 300 psi |
Installation Time (hours) | 1 hours | 0.05 hours |


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

Professional reviewers emphasize the iSpring RCC7AK's full-system NSF/ANSI 58 certification as a key market differentiator, noting that many competitors only certify individual components.
Everyday users consistently praise the ease of installation and the significantly improved water taste due to the remineralization stage.

Professional reviewers view the Waterdrop UA-5Y as a reliable, durable option specifically suited for households prioritizing long-term convenience and ease of installation over maximum contaminant removal breadth.
General user sentiment is positive, with primary praise focused on the super quick installation, high water flow, and consistently clear and clean tasting water.
“the best RO system out there”

“Super quick installation”

“High flow”


