
iSpring RCC1UP-AK
Score: 88/100
SimPure Y9A
Score: 85/100Rankings

The iSpring RCC1UP-AK is a high-performance 7-stage reverse osmosis system featuring UV sterilization and a booster pump for consistent flow. It offers exceptional water efficiency with a 1.5:1 waste ratio and removes up to 99% of contaminants. It is best suited for homeowners with variable water pressure who prioritize comprehensive purification and efficiency.

The SimPure Y9A is a high-performance countertop reverse osmosis system that delivers purified, mineralized water with a fast 300 GPD flow rate. Its main limitation is the need for manual refilling and dedicated counter space, making it less ideal for very high-volume usage. It is best suited for renters and busy households seeking quick access to high-quality, alkaline water without plumbing modifications.
| Attribute | ![]() | ![]() |
|---|---|---|
0.07 GPM | 0.208 GPMbest | |
7 stagesbest | 6 stages | |
99 % | 99.98 %best | |
| ↓ lower better | 30 PSIbest | — |
| ↓ lower better | 0 micronsbest | — |
| ↓ lower better | 1.5 ratiobest | 2.5 ratio |
1 yearsbest | — | |
| ↓ lower better | 19 inches | 14.3 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Health & Safety(1) | ||
Certifications | NSF/ANSI | NSF/ANSI 58 |
Installation & Compatibility(2) | ||
Installation Type | Under Sink | Countertop |
Operating Pressure (PSI) | 30 PSI | PSI |
Filtration & Performance(5) | ||
Flow Rate (GPM) | 0.07 GPM | 0.208 GPM |
Filtration Stages (stages) | 7 stages | 6 stages |
TDS Reduction (%) | 99 % | 99.98 % |
Micron Rating (microns) | 0.0001 microns | microns |
Pure to Drain Ratio (ratio) | 1.5 ratio | 2.5 ratio |
Maintenance & Warranty(1) | ||
Warranty (years) | 1 years | years |
Dimensions & Build(3) | ||
Height (inches) | 19.00 inches | 14.3 inches |
Width (inches) | 5.30 inches | 9.3 inches |
Depth (inches) | 15.50 inches | 16.0 inches |


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

The provided search results do not include detailed professional reviews, editor commentary, or substantial expert critiques. The product is described as an upgrade to the standard RCC7AK-UV system, suggesting it represents an improvement in the product line, but specific professional praise or criticism is not available in the sources.
The search results provided do not include detailed user reviews, testimonials, or consumer feedback sections. Consequently, there is no data regarding common praise, recurring complaints, or general sentiment from everyday users for this specific model.

Professional reviewers highlight the system's speed and ease of use as standout features. Experts also point out that the 6-stage filtration with alkaline remineralization addresses a common complaint about standard reverse osmosis systems regarding the removal of beneficial minerals.
Users appreciate the installation-free design, allowing immediate setup without requiring professional plumbing work. The fast filtration speed receives consistent positive mentions, making it practical for daily use.

