
AFW Filters Fleck 5600SXT
Score: 85/100
Pentair Fleck 5600SXT
Score: 88/100Rankings

The Pentair 64k Fleck 5600SXT is a robust whole-home water softener designed for larger households with high water consumption. It features a high-capacity resin tank and a reliable digital metered valve that optimizes regeneration based on actual usage. While it requires significant space and a 24V power source, its durability and efficiency make it a top choice for demanding applications.

The AFWFilters Premium Fleck 5600 SXT is a robust whole-house water softener designed for homes with moderate to very hard water, featuring a 48,000-grain capacity. Its meter-demand regeneration system offers significant salt and water savings, making it an efficient choice for larger households. It is best suited for DIY installers comfortable with basic plumbing tasks who want a reliable, high-capacity system.
| Attribute | ![]() | ![]() |
|---|---|---|
48,000 grains | 64,000 grainsbest | |
12 GPMbest | 10 GPM | |
1.5 gallons | 2 gallonsbest | |
6 personsbest | 6 personsbest | |
| ↓ lower better | 54 inches | 48 inchesbest |
| ↓ lower better | 10 inchesbest | 12 inches |
| ↓ lower better | 10 inchesbest | 48 inches |
10 yearsbest | 10 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Compliance(1) | ||
Power Source | AC Adapter (24V) | 24V Transformer |
Performance & Capacity(5) | ||
Grain Capacity (grains) | 48000 grains | 64000 grains |
Service Flow Rate (GPM) | 12 GPM | 10 GPM |
Resin Volume (gallons) | 1.5 gallons | 2 gallons |
Recommended Household Size (persons) | 6 persons | 6+ persons |
Operating Pressure (PSI) | 125 PSI | PSI |
System & Control(3) | ||
Regeneration Control Type | Meter Demand | Digital Metered |
System Type | Whole-house | Whole-Home |
Salt Requirement | 250 lbs | Standard Salt |
Physical & Installation(5) | ||
Height (inches) | 54 inches | 48 inches |
Width (inches) | 10 inches | 12 inches |
Depth (inches) | 10 inches | 48 inches |
Installation Type | DIY | Whole-Home DIY |
Weight (lbs) | 130 lbs | 200 lbs |

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Professional assessments highlight the Fleck 5600SXT valve as the most popular water softener control valve on the planet, noting its reliability due to having only one internal moving part in the water stream and its double backwash engineering.
User feedback emphasizes the ease of DIY installation, supported by detailed instructions and video access, as well as the convenience of pre-programming options that simplify setup. Consumers value the reliability and durability of the proven 5600 valve design.