APEC Water RO-90 Ultimate 5-Stage Reverse Osmosis review
By Daryna Klochko · Published · Specs checked Oct 15, 2026 · 
Scores 9.5/10, tied for 8th of the 20 RO systems we track. At $264.99 it costs less than the category median of $459.99. WQA lists it for Lead, TDS, Arsenic, Fluoride, one of 12 RO systems out of 20 with a certifier listing for a health claim. APEC Water also claims Chlorine, Chloramine, Cysts, VOCs, PFOA/PFOS, which are not in the listing.
Low running costs: about $73 a year in cartridges, the lowest among the 19 RO systems that state one
- Price
- $264.99
- Certified for
- Lead · Arsenic · Fluoride +8
- Flow
- Not stated
- Cartridge life
- 12-month cartridge
- Cost per year
- $73
- Warranty
- 1 year (limited)
Certification
Listed by WQA under NSF/ANSI 58 for Lead, TDS, Arsenic, Fluoride, checked Oct 15, 2026. APEC Water also claims 5 more substances that are not in the listing. Search the WQA listings
- Lead
- TDS
- Arsenic
- Fluoride
APEC Water also claims Chlorine, Chloramine, Cysts, VOCs, PFOA/PFOS: brand claims, not in a certifier listing.
The contaminants or other substances removed or reduced by this water treatment device are not necessarily in your water. Listing checked on Oct 15, 2026. What a listing means and what it doesn't
Specs and sources
Checked Oct 15, 2026 · source under each valueFiltration
Cartridges and install
Buying
Warranty, returns and shipping
1 year limited; 2 years if registered within 8 weeks.
Warranty: 1 year limited; 2 years if registered within 8 weeks. Returns: 30 days. Shipping: not stated by the brand. Source: apecwater.com, checked Oct 15, 2026.
Source: apecwater.com, checked Oct 15, 2026.
Compared with similar RO systems
All 20 RO systems →| Model | Price | Certified for | Cost per year | Warranty | Score | Where to buy |
|---|---|---|---|---|---|---|
| Express Water RO5DX 5-Stage Reverse Osmosis System | $189.99 | TDS | $81 | 1 year | 9.75/10 | Check price → |
| APEC Water RO-90 Ultimate 5-Stage Reverse OsmosisTHIS MODEL | $264.99 | Lead · Arsenic +9 | $73 | 1 year (limited) | 9.5/10 | Check price → |
| Brio G10-U ROSL500 Tankless Reverse Osmosis System | $299.99 | Brand claims only | $290 | 1 year (limited) | 9/10 | Check price → |
| Brondell Capella RC250 Reverse Osmosis | $329.99 | Lead · Cysts +18 | $205 | 1 year limited | 9.75/10 | Check price → |
| SimPure T1-400ALK Tankless RO with Remineralization | $349.99 | Brand claims only | $180 | 1 year | 9/10 | Check price → |
What owners say
Checked Oct 15, 2026Reviews only on the brand's own site. In our score this is 1.75 of 2 points. How we score
Store ratings change over time; the date shows when we checked.