Aquasana SmartFlow RO vs Waterdrop G3P600
Only the Aquasana SmartFlow RO is certified to reduce chloramine, arsenic, nitrate and chromium 6 and 5 more. Verdict: the Aquasana SmartFlow RO for broader certified protection (14 vs 5 of the contaminants we track); the Waterdrop G3P600 if running cost matters more. Replacement filters and water for 2 people cost about $321 a year on the Aquasana SmartFlow RO and $147 on the Waterdrop G3P600; they cost $480 and $539 to buy.
| Aquasana SmartFlow RO | Waterdrop G3P600 | |
|---|---|---|
| Type | Under-sink reverse osmosis | Under-sink reverse osmosis |
| Price | $480 | $539 |
| Filters + water a year (2 people) | $321 | $147 |
| Filter cost per gallon (rated life) | — | 13¢ |
| Gallons per day | 25.7 | 600 |
| Pure to drain | 0.38:1 | 2:1 |
| Installation | diy | diy |
| PFAS | Certified | Certified |
| Lead | Certified | Certified |
| Chlorine | Certified | Certified |
| Chloramine | Certified | — |
| Fluoride | Certified | Certified |
| Arsenic | Certified | Brand test only |
| Nitrate | Certified | — |
| Chromium 6 | Certified | Brand test only |
| Mercury | Certified | — |
| Microplastics | Certified | — |
| Cysts | Certified | — |
| VOCs | Certified | — |
| TDS | Certified | Certified |
| Copper | Certified | — |