# APEC Essence ROES-50 vs Express Water RO5DX: specs and price compared

A sourced, side-by-side comparison of the APEC Essence ROES-50 (APEC Water Systems) and Express Water RO5DX (Express Water) among reverse osmosis systems. Express Water RO5DX is the cheaper of the two at $189.99.

## Side by side

| Spec | APEC Essence ROES-50 | Express Water RO5DX |
| --- | --- | --- |
| US price | $230.99 | $189.99 |
| Brand | APEC Water Systems | Express Water |
| 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 | — | — |

## Key differences

- Storage tank gal: APEC Essence ROES-50 4 vs Express Water RO5DX 3.2

## Sources

- APEC Essence ROES-50: https://www.apecwater.com/products/roes-50 (apecwater.com, verified 2026-07-11)
- Express Water RO5DX: https://www.expresswater.com/products/ro-system-ro5dx-with-free-filter-set (expresswater.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/reverse-osmosis-systems/apec-roes-50-vs-express-water-ro5dx/
Cite: Per The Front Desk Review, APEC Essence ROES-50 ($230.99) vs Express Water RO5DX ($189.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/reverse-osmosis-systems/apec-roes-50-vs-express-water-ro5dx/
License: CC BY 4.0.