Reverse Osmosis Alkaline UV Water Filtration System 100 GPD - Deluxe

Our review of the Express Water Reverse Osmosis Alkaline Ultraviolet Water Filtration System finds it best for households that want truly clean, mineralized drinking water without complicated installation. The single biggest reason to buy is the combined approach: a 5-stage alkaline mineral filter plus a UV-C sterilizer and a 100 GPD RO membrane deliver water that is both free of contaminants and remineralized for taste and health. For someone replacing bottled water or improving tap water quality, this system balances performance, built-in leak protection, and relatively straightforward under-sink setup.

Key Features

• Reverse Osmosis Filtration: Removes up to 99.99% of contaminants such as lead, chlorine, fluoride, nitrates, calcium, and arsenic to provide very low-TDS drinking water.
• UV Water Purification: Powerful UV-C sterilization reduces microorganisms like coliform, E. coli and viruses to help ensure microbiologically safe water.
• Alkaline Mineralization: Active Mineral Technology adds calcium, potassium and magnesium back into the water for improved taste and added dietary minerals.
• Under-Sink Convenience: Designed for home under-sink installation with clear diagrams so most users can install without professional help.
• Automatic Tank Fill and Leak Detection: The system automatically fills its storage tank and includes an emergency leak stop detector that shuts off water flow if moisture is detected.
• Quality Assurance: Comes with a 1-year warranty on the reverse osmosis system for basic peace of mind.

Who It's For

This system is ideal for families and individuals who want a reliable under-sink solution to replace bottled water and reduce a wide range of chemical and biological contaminants while restoring beneficial minerals for taste. It suits people who prefer a single integrated unit that combines RO, alkaline remineralization, and UV sterilization in one setup.

It may be less well suited for renters who cannot modify plumbing, or for users who need a tiny countertop unit; installation requires space under the sink and basic plumbing access. Those who expect maintenance-free lifetime operation should note filter and UV lamp replacements are required over time.

Pros & Cons

Pros

• Comprehensive contamination reduction from the RO membrane with added mineralization for flavor and health.
• UV-C sterilization provides an extra safety layer against bacteria and viruses often missed by filtration alone.
• Clear instructions and picture diagrams make installation and filter replacement straightforward for many users.
• Automatic tank filling and leak detection reduce the chance of unnoticed failures or overflow.

Cons

• Maintenance is required: filters and the UV lamp will need periodic replacement, and the system occupies under-sink space.
• Not ideal for situations where no under-sink plumbing access exists or for users who prefer a countertop device.

Specifications

Brand	EXPRESS WATER
Filtration Type	Reverse Osmosis with UV-C and Alkaline Mineralization
Capacity	100 GPD
Mineral Stages	5 stages of mineralization (adds calcium, potassium, magnesium)
Installation	Under-sink with included diagrams, no professional required
Safety Features	Leak detection emergency shutoff and UV warning light
Warranty	1-year on system

Our Verdict

The Express Water 100 GPD RO Alkaline UV system is a well-rounded under-sink choice for anyone who wants thorough contaminant removal plus remineralized water and microbial protection. It offers strong value compared with buying bottled water, is reasonably easy to install, and includes practical safety features like leak detection, making it a solid pick for most households seeking cleaner, better-tasting tap water.

Frequently Asked Questions

Does the system remove bacteria and viruses?
The UV-C sterilizer is designed to eliminate microorganisms including coliform and E. coli, while the RO membrane removes many additional contaminants.

Will this system improve water taste?
Yes, the 5-stage alkaline mineral filter adds calcium, potassium and magnesium back into the water to improve flavor and provide dietary minerals.

Is professional installation required?
No, the unit includes easy-to-follow instructions and picture diagrams so most users can install it under a sink without hiring a pro.