Cloud Water Filters
Cloud RO
$649
Best Reverse Osmosis Systems · head-to-head
A sourced, side-by-side comparison. Cloud RO is cheaper at $649. Every spec and price links to its source.
Cloud Water Filters
$649
Waterdrop
—
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $649 | — |
| Brand | Cloud Water Filters | Waterdrop |
| Released | — | — |
| Install type | under-sink | tankless-under-sink |
| Filtration stages | 4 | 10 |
| Rated capacity gpd | — | 800 |
| Pure to drain ratio | 1:1 | 3:1 |
| TDS reduction pct | — | — |
| Remineralization | Yes | No |
| Requires electricity | No | Yes |
| Storage tank gal | 2.8 | 0 |
| Nsf certified standards | 58 | 42, 53, 58, 372 |
| Membrane life months | — | 24 |
| Annual filter cost usd | 200 | — |
Sources — Cloud RO: cloudwaterfilters.com (verified 2026-07-11). Waterdrop G3 P800: waterdropfilter.com (verified 2026-07-11).
Where the two actually differ on the specs we track (7 of 11). Matching specs are omitted.