APEC Water Systems
APEC Essence ROES-50
$230.99
Best Reverse Osmosis Systems · head-to-head
APEC Essence ROES-50 vs Express Water RO5DX
A sourced, side-by-side comparison. Express Water RO5DX is cheaper at $189.99. Every spec and price links to its source.
Express Water
Express Water RO5DX
$189.99Cheaper
Which is better: the APEC Essence ROES-50 or Express Water RO5DX?
On the specs we track, they're closely matched. The Express Water RO5DX is the cheaper at $189.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | APEC Essence ROES-50 | Express Water RO5DX |
|---|---|---|
| US price | $230.99 | $189.99 |
| Brand | APEC Water Systems | Express Water |
| Released | — | — |
| Install type | under-sink | under-sink |
| Filtration stages | 5 | 5 |
| Rated capacity gpd | 50 | 50 |
| Pure to drain ratio | — | — |
| TDS reduction pct | — | — |
| Remineralization | No | No |
| Requires electricity | No | No |
| Storage tank gal | 4 | 3.2 |
| Nsf certified standards | 58, 372 | 58, 372 |
| Membrane life months | — | — |
| Annual filter cost usd | — | — |
Sources — APEC Essence ROES-50: apecwater.com (verified 2026-07-11). Express Water RO5DX: expresswater.com (verified 2026-07-11).
What's the difference between the APEC Essence ROES-50 and Express Water RO5DX?
Where the two actually differ on the specs we track (1 of 11). Matching specs are omitted.
- Storage tank gal: APEC Essence ROES-50 4 vs Express Water RO5DX 3.2