AFWFilters Fleck 5600SXT 48K
A straightforward Fleck 5600SXT softener for a family of three to five, for buyers who value a widely serviced valve over certification.
Amazon $804.99$804.99
The AFWFilters Fleck 5600SXT 48K rates 3.1 among 32,001 to 48,000 grains water softeners; the AFWFilters Fleck 5600SXT 64K rates 3.1 among over 48,000 grains ones. The AFWFilters Fleck 5600SXT 48K costs $90.01 less ($804.99 vs $895).
AFWFilters Fleck 5600SXT 64K
A low cost large capacity Fleck softener for big households or very hard water, for buyers comfortable with an uncertified, seller-built system.
Amazon $895$895
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 | AFWFilters Fleck 5600SXT 48K | AFWFilters Fleck 5600SXT 64K |
|---|---|---|
| Overall rating | 3.1/5 | 3.1/5 |
| Value 30% | 53 $16.77 per 1,000 grains ($804.99, 48,000 grains) | 51 $13.98 per 1,000 grains ($895, 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% | 50 warranty not published (neutral score used) | 50 warranty not published (neutral score used) |
| Certification 10% | 0 not certified to NSF/ANSI 44 | 0 not certified to NSF/ANSI 44 |
Specifications
| AFWFilters Fleck 5600SXT 48K | AFWFilters Fleck 5600SXT 64K | |
|---|---|---|
| Capacity | ||
| Rated capacity | 48,000 grains | 64,000 grains |
| Resin | 1.5 cu ft | 2 cu ft |
| Control | ||
| Valve | Fleck 5600SXT | Fleck 5600SXT |
| Regenerates on demand | Yes | Yes |
| App or remote monitoring | No | No |
| Bypass valve included | Yes | Yes |
| Resin tank | 10 x 54 in | - |
| Certification and warranty | ||
| NSF/ANSI 44 | No | No |