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 (4.6 vs 4.7). The gap is mostly about buyers wanting USA-made alkaline RO — read the strengths below before deciding.
The ROES-50 is the budget RO pick — APEC's 5-stage system with the lowest annual filter cost.
The ROES-PH75 is the alkaline APEC pick — same 6-stage approach as iSpring RCC7AK but USA-made.
Cheapest filter cost. USA-made. No alkaline.
USA-made alkaline. 5-year warranty. Similar to iSpring RCC7AK.
| Spec | APEC ROES-50 | APEC ROES-PH75 |
|---|---|---|
| Stages | 5 | 6 (with alkaline) |
| Origin | USA | USA |
| Filter Cost | ~$75/yr | — |
| Warranty | 2-year | 5-year |
| GPD | — | 75 |