Frizzlife PD800-TAM4 vs iSpring RO500AK-BN
Only the iSpring RO500AK-BN is certified to reduce TDS. Verdict: the iSpring RO500AK-BN for broader certified protection (1 vs 0 of the contaminants we track); the Frizzlife PD800-TAM4 if running cost matters more. Replacement filters and water for 2 people cost about $111 a year on the Frizzlife PD800-TAM4 and $198 on the iSpring RO500AK-BN; they cost $650 and $693 to buy.
| Frizzlife PD800-TAM4 | iSpring RO500AK-BN | |
|---|---|---|
| Type | Under-sink reverse osmosis | Under-sink reverse osmosis |
| Price | $650 | $693 |
| Filters + water a year (2 people) | $111 | $198 |
| Filter cost per gallon (rated life) | 12¢ | — |
| Gallons per day | 800 | 500 |
| Pure to drain | 2:1 | 2:1 |
| Installation | diy | diy |
| PFAS | Brand test only | — |
| Lead | Brand test only | Brand test only |
| Chlorine | Brand test only | Brand test only |
| Fluoride | Brand test only | Brand test only |
| Arsenic | Brand test only | Brand test only |
| Nitrate | Brand test only | — |
| Chromium 6 | Brand test only | — |
| Mercury | Brand test only | — |
| TDS | Brand test only | Certified |
| Copper | Brand test only | — |