
Express Water Alkaline RO
Score: 82/100
Bluevua RO100ROPOT-UV
Score: 82/100Rankings

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.

The Bluevua RO100ROPOT is a portable countertop reverse osmosis system that offers comprehensive 99.99% contaminant removal with UV sterilization and remineralization. Its main drawbacks are its large footprint on the counter and a wasteful 2:1 water-to-waste ratio. It is ideal for renters or those who cannot install permanent under-sink systems.
| Attribute | ![]() | ![]() |
|---|---|---|
0.035 GPMbest | — | |
6 months | 18 monthsbest | |
10 stagesbest | 6 stages | |
99.99 %best | 99.99 %best | |
| ↓ lower better | 40 PSIbest | — |
| ↓ lower better | — | 2 ratiobest |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 17 inches | 14.3 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Health & Safety(1) | ||
Certifications | NSF 58 | NSF/ANSI 58, NSF/ANSI/CAN 372, WQA |
Installation & Compatibility(1) | ||
Installation Type | Under-Sink | Countertop |
Filtration & Performance(3) | ||
Filtration Technology | Reverse Osmosis | Reverse Osmosis, UV, Remineralization |
Filtration Stages (stages) | 10 stages | 6 stages |
Pure to Drain Ratio (ratio) | ratio | 2 ratio |
Maintenance & Warranty(1) | ||
Filter Lifespan (months) | 6 months | 18 months |
Dimensions & Build(3) | ||
Height (inches) | 17 inches | 14.3 inches |
Width (inches) | 15 inches | 15.4 inches |
Depth (inches) | 5 inches | 10.9 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.



TechGearLab and other experts identify the RO100ROPOT as a convenient solution for those who want reverse osmosis filtration without the need for permanent installation. Experts emphasize that the setup is straightforward and requires no complicated installation, making it particularly valuable for renters unable to modify plumbing. Reviewers note the system provides exceptional filtration performance and is ideal specifically for renters or short-term tenants, though they recommend under-the-sink models for homeowners or long-term residents due to space and cost considerations.
Consumer feedback highlights hassle-free setup and operation as major benefits, with users appreciating the reliable contaminant removal that delivers noticeably cleaner, better-tasting water. The system is praised for being suitable for those unable to install permanent systems. However, recurring concerns include space constraints on kitchen counters and awareness of water waste due to the 2:1 wastewater ratio.