Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.
APEC ROES-PH75 comes out ahead by a narrow margin (4.7 vs 4.5). The gap is mostly about buyers wanting USA-made alkaline RO — read the strengths below before deciding.
The ROES-PH75 is the alkaline APEC pick — same 6-stage approach as iSpring RCC7AK but USA-made.
The D6 is the value tankless pick — Waterdrop's compact tankless RO at $349. Best for buyers wanting tankless without G3P800 premium.
USA-made alkaline. 5-year warranty. Similar to iSpring RCC7AK.
Cheaper tankless. Lower GPD than G3P800. Compact.
| Spec | APEC ROES-PH75 | Waterdrop D6 Tankless |
|---|---|---|
| Stages | 6 (with alkaline) | — |
| Origin | USA | — |
| Warranty | 5-year | — |
| GPD | 75 | 600 |
| Type | — | Tankless RO |
| Faucet | — | TDS display |
| Power | — | Electrical required |