Aquasana SmartFlow Reverse Osmosis review
By Daryna Klochko · Published · Specs checked Oct 13, 2026 · 
Scores 9.25/10, tied for 10th of the 20 RO systems we track. At $449.99 it costs less than the category median of $459.99. Its 2-year warranty is longer than the 1-year category median. Its 90-day return window is 3 times the 30-day category median.
The widest listing: 10 substances in the WQA listing, tied for the most among the 20 RO systems
Running costs matter: about $310 a year in cartridges, 1.51 times the category median
- Price
- $449.99
- Certified for
- Lead · Cysts · VOCs +8
- Flow
- 0.7 gpm (brand)
- Cartridge life
- 250 gal
- Cost per year
- $310
- Warranty
- 2 years
Certification
Listed by WQA under NSF/ANSI 42 · 53 · 58 · 401 for Chlorine, Chloramine, Lead, Cysts, VOCs, PFOA/PFOS, Microplastics, TDS, Arsenic, Fluoride, checked Oct 13, 2026. Search the WQA listings
- Chlorine
- Chloramine
- Lead
- Cysts
- VOCs
- PFOA/PFOS
- Microplastics
- TDS
- Arsenic
- Fluoride
The contaminants or other substances removed or reduced by this water treatment device are not necessarily in your water. Listing checked on Oct 13, 2026. What a listing means and what it doesn't
Specs and sources
Checked Oct 13, 2026 · source under each valueFiltration
Cartridges and install
Buying
Warranty, returns and shipping
Warranty: 2 years. Returns: 90 days. Shipping: not stated by the brand. Source: Aquasana data sheet, checked Oct 13, 2026.
Source: Aquasana data sheet, checked Oct 13, 2026.
Compared with similar RO systems
All 20 RO systems →| Model | Price | Certified for | Cost per year | Warranty | Score | Where to buy |
|---|---|---|---|---|---|---|
| Aquasana SmartFlow Reverse OsmosisTHIS MODEL | $449.99 | Lead · Cysts +9 | $310 | 2 years | 9.25/10 | Check price → |
| Brondell Circle RC100 Reverse Osmosis | $449.99 | Lead · Cysts +12 | $205 | 1 year limited | 9.75/10 | Check price → |
| Frizzlife PD600-TAM3 Tankless Reverse Osmosis | $469.99 | Brand claims only | $107 | 1 year | 9/10 | Check price → |
| A. O. Smith AOS-DFRO800 Tankless Reverse Osmosis | $474.99 | TDS | $290 | 2 years limited | 9/10 | Check price → |
| Brio G20-U ROSL700 Tankless Reverse Osmosis System | $499.99 | Brand claims only | $340 | 1 year (limited) | 8.75/10 | Check price → |