
iSpring RCC7AK-UV
Score: 90/100
Home Master HydroPerfection TMHP
Score: 92/100Rankings

The Home Master TMHP HydroPerfection is a 9-stage under-sink reverse osmosis system that utilizes patented Full Contact Technology to remineralize water with calcium and magnesium. It features a non-electric permeate pump for a 1:1 waste ratio and an EPA-registered UV LED sterilizer to eliminate bacteria and viruses. Best suited for health-conscious households prioritizing water purity and mineral content.

The iSpring RCC7AK-UV is a 7-stage under-sink reverse osmosis system that combines mechanical filtration with alkaline remineralization and UV sterilization. It offers a high 75 GPD flow rate and NSF/ANSI 58 certification, making it ideal for well water users and larger households. The inclusion of UV sterilization is a standout feature, though it requires adequate feed water pressure.
| Attribute | ![]() | ![]() |
|---|---|---|
7 stages | 9 stagesbest | |
75 gallons per daybest | 75 gallons per daybest | |
97.9 percent | 99 percentbest | |
2 gallons | 2.2 gallonsbest | |
1,000 countbest | 99 count | |
6 months | 12 monthsbest | |
| ↓ lower better | 8 inches | 5 inchesbest |
| ↓ lower better | 18 inches | 16 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Compliance & Safety(1) | ||
Certifications | NSF/ANSI 58 | NSF Certified, EPA Registered UV |
Storage(1) | ||
Storage Tank Capacity (gallons) | 2 gallons | 2.2 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 | 16.0 inches |
Performance(5) | ||
Filtration Stages (stages) | 7 stages | 9 stages |
TDS Reduction Rate (percent) | 97.9 percent | 99 percent |
Wastewater Ratio | Standard | 1:1 |
Contaminants Removed (count) | 1000 count | 99 count |
Feed Water Pressure (PSI) | 45 PSI | 40 PSI |
Features(1) | ||
Faucet Type | Brushed Nickel | Standard |

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

Professional reviewers characterize the iSpring RCC7AK-UV as a solid, budget-friendly option that delivers effective filtration, highlighting its NSF certifications and remineralization capabilities.
Everyday users express strong satisfaction with the product, reflected in a high rating on major retail platforms, praising the clean taste and peace of mind.

“very clean water”

“Say no more. Perfect!”



Professional reviewers highlight the Home Master HydroPerfection as an exceptional under-sink reverse osmosis filter that effectively eliminates contaminants while enriching water with essential minerals. The patented Full Contact Technology is cited as a key differentiator that addresses limitations of traditional systems, such as tank degradation and slow flow rates.
Everyday users consistently praise the system for its ease of setup and the high quality of the water it produces. Common themes include appreciation for the strong water pressure, fast flow rates, and the environmental benefit of the 1:1 waste ratio. Users report satisfaction with the clean taste and the peace of mind regarding bacteria and chemical removal.