Express Water Alkaline RO
Score: 82/100
Express Water Alkaline UV
Score: 88/100Rankings
The Express Water 100 GPD system is a multi-stage under-sink water filtration unit that integrates reverse osmosis, UV sterilization, and alkaline mineralization to remove up to 99.99% of contaminants. It offers comprehensive purification for large households, though the slow flow rate and space requirements are notable trade-offs. It is best suited for large households (8+ people) seeking comprehensive water purification.
The Express Water 10-Stage Reverse Osmosis Alkaline Water Filtration System is an under-sink unit that combines reverse osmosis technology with alkaline mineralization to remove up to 99.99% of contaminants while adding beneficial minerals back into the water. It includes a 4-gallon storage tank, dedicated faucet, and all necessary installation components for a complete DIY setup. Best suited for families of 4+ people seeking a permanent under-sink filtration solution.
| Attribute | | |
|---|---|---|
0.035 GPMbest | 0.035 GPMbest | |
6 monthsbest | — | |
10 stagesbest | 10 stagesbest | |
99.99 %best | 99.99 %best | |
| ↓ lower better | 40 PSIbest | 40 PSIbest |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 17 inchesbest | 19 inches |
| ↓ lower better | 15 inches | 14 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Health & Safety(1) | ||
Certifications | NSF 58 | NSF |
Installation & Compatibility(1) | ||
Installation Type | Under-Sink | Under-sink |
Filtration & Performance(2) | ||
Micron Rating (microns) | microns | null microns |
Pure to Drain Ratio (ratio) | ratio | null ratio |
Maintenance & Warranty(1) | ||
Filter Lifespan (months) | 6 months | null months |
Dimensions & Build(3) | ||
Height (inches) | 17 inches | 19.0 inches |
Width (inches) | 15 inches | 14.0 inches |
Depth (inches) | 5 inches | 5.0 inches |
Products in the top-left offer the best value (high score, low price).
Professional assessment highlights the Express Water system as a certified, comprehensive solution for residential drinking water. The NSF 58 certification is emphasized as a key indicator of quality and reliability.
The product is marketed as a practical solution for families and well water users, with the 4-gallon tank specifically noted as addressing the slow flow rate by allowing water accumulation.
Professional reviews are limited, but the product carries NSF certification for its reverse osmosis components, validating its contaminant reduction claims. The system is distinguished by its triple-technology approach, integrating UV sterilization and alkaline mineralization with standard RO filtration, placing it in the premium category for comprehensive purification.
Users generally rate the system highly, praising its ability to produce clean, great-tasting water and its comprehensive filtration capabilities. The automatic leak detection and easy installation are frequently highlighted positives.
