iSpring RO500AK-BN vs Waterdrop X16
Only the Waterdrop X16 is certified to reduce chlorine. Verdict: the Waterdrop X16 for broader certified protection (2 vs 1 of the contaminants we track).
| iSpring RO500AK-BN | Waterdrop X16 | |
|---|---|---|
| Type | Under-sink reverse osmosis | Under-sink reverse osmosis |
| Price | $693 | $1,999 |
| Filters + water a year (2 people) | $198 | — |
| Filter cost per gallon (rated life) | — | — |
| Gallons per day | 500 | 1600 |
| Pure to drain | 2:1 | 3:1 |
| Installation | diy | diy |
| PFAS | — | Brand test only |
| Lead | Brand test only | Brand test only |
| Chlorine | Brand test only | Certified |
| Fluoride | Brand test only | Brand test only |
| Arsenic | Brand test only | Brand test only |
| Chromium 6 | — | Brand test only |
| TDS | Certified | Certified |