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48,000 Grain Water Softeners and Up

All Water Softeners

8 48,000 grain water softeners and up from AFWFilters, Aquasure, DuraWater and more. Most cost $793 to $839, and half cost less than $805.

Whole-house water softeners whose title states a grain capacity of 48,000 grains or more.

We do not pick by hand: a water softener is here because its listed specs pass the checks.

Top brands: AFWFilters (4)

All filtersFilters (1)×
Control valve: Fleck 5600SXT  ×Clear all
BrandAFWFilters4DuraWater4
System typeSalt-based8
Grain capacity480007640001
Metered regenerationMetered regeneration6
Control valveFleck 5600SXT8Fleck 9100SXT6Fleck 2510SXT1
Whole houseWhole house4
PriceUnder $8003Under $9004Under $1,0001$700 & above8$800 & above5
Clear allShow 8 Water Softeners
Control valve: Fleck 5600SXT  ×8 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
AFWFiltersSpec score 8.8

Salt-based, 48000 Grain capacity, Fleck 5600SXT

+Whole-house system treats water throughout the home
+Metered regeneration uses water based on usage
+48,000 grain capacity for households with moderate hardness
−Salt-based softening requires regular salt refills
$804.99
as of 11/04/2026 10:41 PST - Details
AFWFiltersSpec score 9.0

Salt-based, 64000 Grain capacity, Fleck 5600SXT

+Whole-house system treats water at every tap
+64,000 grain capacity for large households
+Metered on-demand regeneration based on water use
$902.99
as of 11/03/2026 22:59 PST - Details
AFWFiltersSpec score 8.8

Salt-based, 48000 Grain capacity, Fleck 5600SXT

+48,000 grain capacity suits larger households
+Metered Fleck 5600SXT control valve
+Includes a by-pass valve for servicing
−Requires salt refills to keep softening
$791.99
as of 11/04/2026 00:00 PST - Details
AFWFiltersSpec score 8.8

Salt-based, 48000 Grain capacity, Fleck 5600SXT

+Whole house system for all water outlets
+Fleck 5600SXT digital metered-demand control
+48,000 grain capacity
$804.99
as of 11/04/2026 10:41 PST - Details
DuraWater

Salt-based, 48000 Grain capacity, Fleck 5600SXT

+Whole-house system treats water at every tap
+48,000 grain capacity for medium to large households
+Fleck 5600SXT control valve
$825.00
as of 11/04/2026 17:42 PST - Details
DuraWater

Salt-based, 48000 Grain capacity, Fleck 5600SXT

+48,000 grain capacity for medium to large households
+Iron removal capability for iron-heavy water
+Fleck 5600SXT control valve
$839.00
as of 11/04/2026 17:42 PST - Details
DuraWaterSpec score 8.8

Salt-based, 48000 Grain capacity, Fleck 5600SXT

+48,000 grain capacity
+Fleck 5600SXT metered on-demand control
+Includes brine tank and bypass valve
$793.00
as of 11/04/2026 10:41 PST - Details
DuraWaterSpec score 8.8

Salt-based, 48000 Grain capacity, Fleck 5600SXT

+48,000 grain capacity for medium to large households
+Metered control regenerates based on water use
+Fleck 5600SXT control valve
$799.00
as of 11/04/2026 17:42 PST - Details

Compare specs

water softenerSystem typeGrain capacityControl valveSpec scorePrice
Salt-based48000Fleck 5600SXT8.8$804.99
as of 11/04/2026 10:41 PST - Details
Salt-based64000Fleck 5600SXT9.0$902.99
as of 11/03/2026 22:59 PST - Details
Salt-based48000Fleck 5600SXT8.8$791.99
as of 11/04/2026 00:00 PST - Details
Salt-based48000Fleck 5600SXT8.8$804.99
as of 11/04/2026 10:41 PST - Details
Salt-based48000Fleck 5600SXTn/a$825.00
as of 11/04/2026 17:42 PST - Details
Salt-based48000Fleck 5600SXTn/a$839.00
as of 11/04/2026 17:42 PST - Details
Salt-based48000Fleck 5600SXT8.8$793.00
as of 11/04/2026 10:41 PST - Details
Salt-based48000Fleck 5600SXT8.8$799.00
as of 11/04/2026 17:42 PST - Details

Before you buy

Other uses

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Popular filters

Water Softeners with Whole House33Salt-Based Water Softeners23Water Softeners with Metered Regeneration14Salt-Free Water Softeners11Fleck 5600SXT Water Softeners948,000-Grain Water Softeners9Water Softeners with Iron Removal8Portable or RV Water Softeners8

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.