APEC Ultimate RO-90
Score: 86/100
Express Water Reverse Osmosis
Score: 82/100Rankings
The APEC Water Systems RO-90 Ultimate Series is a WQA-certified, 5-stage under-sink reverse osmosis filtration system designed to produce 90 gallons of ultra-pure water per day. It features a durable metal frame, US-made filters with extended lifespan, and a 4-gallon storage tank to support households of four or more people. The higher operating pressure requirement and larger footprint are the main considerations for installation.
The Express Water RO10M is a 5-stage reverse osmosis system designed for under-sink installation, capable of reducing up to 99.99% of contaminants. It features automatic tank refill technology and leak detection, though it requires a storage tank that takes up space. It is best suited for households of 4+ people seeking consistent daily drinking water production.
| Attribute | | |
|---|---|---|
0.063 GPM | 0.8 GPMbest | |
12 monthsbest | 12 monthsbest | |
5 stagesbest | 5 stagesbest | |
100 %best | 99 % | |
| ↓ lower better | 50 PSI | 40 PSIbest |
— | 1 yearsbest | |
| ↓ lower better | 17.5 inches | 17 inchesbest |
| ↓ lower better | 5.25 inches | 5 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Health & Safety(2) | ||
Certifications | WQA Gold Seal | NSF/ANSI 58 |
Remineralization | false | true |
Installation & Compatibility(1) | ||
Operating Pressure (PSI) | 50 PSI | 40 PSI |
Filtration & Performance(3) | ||
Flow Rate (GPM) | 0.0625 GPM | 0.8 GPM |
TDS Reduction (%) | 100 % | 99 % |
Pure to Drain Ratio (ratio) | ratio | null ratio |
Maintenance & Warranty(1) | ||
Warranty (years) | years | 1 years |
Dimensions & Build(3) | ||
Height (inches) | 17.5 inches | 17.0 inches |
Width (inches) | 5.25 inches | 5.0 inches |
Depth (inches) | 16.0 inches | 15.0 inches |
Products in the top-left offer the best value (high score, low price).
Professional reviewers from sources like Lowe's and Home Depot highlight the RO-90's premium quality, WQA certification, and superior contaminant removal capabilities. They praise the durable metal construction, eco-friendly design, and the longevity of US-made filters, positioning the system as virtually maintenance-free with a crisp taste that outperforms bottled water.
Everyday users consistently praise the excellent water quality and taste, noting significant reductions in Total Dissolved Solids (TDS). Common themes include satisfaction with the easy installation process, the long lifespan of the filters, and the overall value for obtaining pure water for growing families.
Professional reviewers highlight the Express Water RO10M's ability to deliver crisp, pure water that tastes noticeably fresher than tap water. The system is praised for its compact design that fits neatly under sinks and its specially engineered filters that produce healthy drinking water.
Users appreciate the simple setup and preassembled design that reduces installation complexity, making it accessible for DIY enthusiasts. The product line maintains strong engagement on retail platforms, suggesting high interest.
