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Home Master
Home Master TMHP HydroPerfection
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Best Reverse Osmosis Systems · head-to-head
Home Master TMHP HydroPerfection 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
$189.99
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Home Master TMHP HydroPerfection |  Express Water RO5DX |
|---|---|---|
| US price | — | $189.99 |
| Brand | Home Master | Express Water |
| Released | — | — |
| Install type | under-sink | under-sink |
| Filtration stages | 9 | 5 |
| Rated capacity gpd | 50 | 50 |
| Pure to drain ratio | 1:1 | — |
| TDS reduction (%) | — | — |
| Remineralization | Yes | No |
| Requires electricity | Yes | No |
| Storage tank (gal) | 3.2 | 3.2 |
| NSF certified standards | — | 58, 372 |
| Membrane life months | — | — |
| Annual filter cost (USD) | — | — |
Sources — Home Master TMHP HydroPerfection: theperfectwater.com (verified 2026-07-11). Express Water RO5DX: expresswater.com (verified 2026-10-20).
What's the difference between the Home Master TMHP HydroPerfection and Express Water RO5DX?
Where the two actually differ on the specs we track (3 of 11). Matching specs are omitted.
- Filtration stages: Home Master TMHP HydroPerfection 9 vs Express Water RO5DX 5
- Remineralization: Home Master TMHP HydroPerfection true vs Express Water RO5DX false
- Requires electricity: Home Master TMHP HydroPerfection true vs Express Water RO5DX false