Aquasure Harmony 48K
A budget metered softener sized for a typical family with hard water. It costs little per grain, but its capacity and salt use are not independently verified.
Amazon $629.99$629.99
The Aquasure Harmony 48K rates 3.3 among 32,001 to 48,000 grains water softeners; the Aquasure Harmony 64K rates 3.2 among over 48,000 grains ones. The Aquasure Harmony 48K costs $120 less ($629.99 vs $749.99).
Aquasure Harmony 64K
A cheap way to get a large metered softener for a big household or very hard water. Capacity and salt use rest on the maker’s word alone.
Amazon $749.99$749.99
Prices were last checked November 1, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different size classes (32,001 to 48,000 grains and over 48,000 grains), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Aquasure Harmony 48K | Aquasure Harmony 64K |
|---|---|---|
| Overall rating | 3.3/5 | 3.2/5 |
| Value 30% | 75 $13.12 per 1,000 grains ($629.99, 48,000 grains) | 66 $11.72 per 1,000 grains ($749.99, 64,000 grains) |
| Salt efficiency 20% | 50 salt efficiency not published (neutral score used) | 50 salt efficiency not published (neutral score used) |
| Flow 15% | 50 service flow not published (neutral score used) | 50 service flow not published (neutral score used) |
| Warranty 25% | 44 5 years on the valve, 10 years on the tanks | 44 5 years on the valve, 10 years on the tanks |
| Certification 10% | 0 not certified to NSF/ANSI 44 | 0 not certified to NSF/ANSI 44 |
Specifications
| Aquasure Harmony 48K | Aquasure Harmony 64K | |
|---|---|---|
| Capacity | ||
| Rated capacity | 48,000 grains | 64,000 grains |
| Resin | 1.5 cu ft | 2 cu ft |
| Control | ||
| Valve | Aquatrol digital metered | Aquatrol digital metered |
| Regenerates on demand | Yes | Yes |
| App or remote monitoring | No | No |
| Bypass valve included | Yes | Yes |
| Resin tank | 10 x 54 in | 12 x 52 in |
| Certification and warranty | ||
| NSF/ANSI 44 | No | No |
| Valve warranty | 5 years | 5 years |
| Tank warranty | 10 years | 10 years |