iSpring RO500AK-BN vs Waterdrop G3P800
Only the Waterdrop G3P800 is certified to reduce PFAS, lead, chlorine and fluoride. Verdict: the Waterdrop G3P800 for broader certified protection (5 vs 1 of the contaminants we track). Replacement filters and water for 2 people cost about $198 a year on the iSpring RO500AK-BN and $161 on the Waterdrop G3P800; they cost $693 and $999 to buy.
| iSpring RO500AK-BN | Waterdrop G3P800 | |
|---|---|---|
| Type | Under-sink reverse osmosis | Under-sink reverse osmosis |
| Price | $693 | $999 |
| Filters + water a year (2 people) | $198 | $161 |
| Filter cost per gallon (rated life) | — | 13¢ |
| Gallons per day | 500 | 800 |
| Pure to drain | 2:1 | 3:1 |
| Installation | diy | diy |
| PFAS | — | Certified |
| Lead | Brand test only | Certified |
| Chlorine | Brand test only | Certified |
| Fluoride | Brand test only | Certified |
| Arsenic | Brand test only | — |
| VOCs | — | Brand test only |
| TDS | Certified | Certified |