APEC Ultimate RO-90
Score: 86/100
APEC Essence ROES-50
Score: 85/100Rankings
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 APEC ROES-50 Essence is a 5-stage under-sink reverse osmosis system designed for DIY installation, producing 50 gallons of purified water daily. It features a 4-gallon storage tank and utilizes a FILMTEC membrane to remove up to 99% of contaminants, offering high filtration performance at a budget-friendly price point. The main trade-offs are the high wastewater ratio and the potential messiness during filter changes.
| Attribute | | |
|---|---|---|
0.063 GPMbest | 0.035 GPM | |
12 monthsbest | 9 months | |
5 stagesbest | 5 stagesbest | |
100 %best | 99.99 % | |
| ↓ lower better | 50 PSI | 40 PSIbest |
| ↓ lower better | — | 3 ratiobest |
| ↓ lower better | 17.5 inchesbest | 19 inches |
| ↓ lower better | 5.25 inchesbest | 5.25 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Installation & Compatibility(1) | ||
Operating Pressure (PSI) | 50 PSI | 40 PSI |
Filtration & Performance(3) | ||
Flow Rate (GPM) | 0.0625 GPM | 0.035 GPM |
TDS Reduction (%) | 100 % | 99.99 % |
Pure to Drain Ratio (ratio) | ratio | 3.0 ratio |
Maintenance & Warranty(1) | ||
Filter Lifespan (months) | 12 months | 9 months |
Dimensions & Build(1) | ||
Height (inches) | 17.5 inches | 19 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.
“Great-tasting water, easy install, reliable for years.”
“Removes bad taste/odor from city water; better than bottled.”
“Filter changes messy; water everywhere.”
Professional reviewers and editors, such as TechGearLab and RO-System.org, praise the APEC ROES-50 as a top pick for filtration performance relative to its price. It is described as a proven workhorse that punches above its weight class in removing critical contaminants like lead, chlorine, and PFAS.
Everyday consumers generally express high satisfaction with the water quality, noting that it tastes better than bottled water and effectively removes city water odors. Users appreciate the affordability of filters and the ease of DIY installation.
