
AFW Filters Fleck 5600SXT
Score: 85/100
Kenmore 350
Score: 72/100Rankings

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.

The Kenmore 350 is a compact, whole-home water softener designed for households of 1-4 people, featuring IntelliSoft technology to optimize salt and water usage. It offers a high-flow valve and NSF certification, making it suitable for moderate hardness levels. However, its limited grain capacity and iron reduction capabilities make it less ideal for larger families or homes with very hard water.
| Attribute | ![]() | ![]() |
|---|---|---|
48,000 grainsbest | 32,000 grains | |
12 GPMbest | 7.2 GPM | |
1.5 gallonsbest | — | |
6 personsbest | 4 persons | |
| ↓ lower better | 54 inches | 48 inchesbest |
| ↓ lower better | 10 inchesbest | 15 inches |
| ↓ lower better | 10 inchesbest | 20.5 inches |
10 yearsbest | 10 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Durability(1) | ||
Tank Material | Fiberglass | |
Power & Compliance(1) | ||
Power Source | AC Adapter (24V) | Manual/Gravity-fed |
Performance & Capacity(5) | ||
Grain Capacity (grains) | 48000 grains | 32000 grains |
Service Flow Rate (GPM) | 12 GPM | 7.2 GPM |
Resin Volume (gallons) | 1.5 gallons | gallons |
Recommended Household Size (persons) | 6 persons | 4 persons |
Operating Pressure (PSI) | 125 PSI | PSI |
System & Control(3) | ||
Regeneration Control Type | Meter Demand | Demand-initiated |
System Type | Whole-house | Single Tank |
Salt Requirement | 250 lbs | Low |
Physical & Installation(4) | ||
Height (inches) | 54 inches | 48 inches |
Width (inches) | 10 inches | 15 inches |
Depth (inches) | 10 inches | 20.5 inches |
Weight (lbs) | 130 lbs | 80 lbs |


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