Aquasure Harmony 32K
A low cost metered softener for a small household on city or well water that wants the basics done cheaply. Buyers who want verified salt efficiency should look at a certified model.
Amazon $523.29$523.29
The Aquasure Harmony 32K is the better water softener overall, rated 3.2 to 3.1. The Aquasure Harmony 32K leads on value. The Aquasure Harmony 32K costs $261.71 less ($523.29 vs $785).
AFWFilters Fleck 5600SXT 32K
A plain Fleck 5600SXT softener for one to three people on moderately hard water, for buyers who want a valve any local shop can service.
Amazon $785$785
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.
Which should you buy?
- Choose the Aquasure Harmony 32K for value ($16.35 per 1,000 grains ($523.29, 32,000 grains) vs $24.53 per 1,000 grains ($785, 32,000 grains)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 32,000 grains water softener; a clear win is highlighted. How we rank explains each one.
| Factor weight | Aquasure Harmony 32K | AFWFilters Fleck 5600SXT 32K |
|---|---|---|
| Overall rating | 3.2/5 | 3.1/5 |
| Value 30% | 71 $16.35 per 1,000 grains ($523.29, 32,000 grains) | 33 $24.53 per 1,000 grains ($785, 32,000 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) | 100 12 gpm service flow |
| 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 32K | AFWFilters Fleck 5600SXT 32K | |
|---|---|---|
| Capacity | ||
| Rated capacity | 32,000 grains | 32,000 grains |
| Resin | 1 cu ft | - |
| Service flow | - | 12 gpm |
| Control | ||
| Valve | Aquatrol digital metered | Fleck 5600SXT |
| Regenerates on demand | Yes | Yes |
| App or remote monitoring | No | No |
| Bypass valve included | Yes | Yes |
| Resin tank | 8 x 44 in | - |
| Certification and warranty | ||
| NSF/ANSI 44 | No | No |
| Valve warranty | 5 years | 5 years |
| Tank warranty | 10 years | 10 years |