Spec score 9.0
Salt-based, 40000 Grain capacity
+Whole-house system treats water throughout the home
+NSF/ANSI 44 certified softening
+40,000 grain capacity
−Salt-based softening requires regular salt refills
$749.00
as of 11/04/2026 11:42 PST - DetailsProduct details
Aquasana SimplySoft 40K Grain Whole House Water Softener | WH-SF40-BASE | NSF/ANSI 44 | 15.5 GPM | Metered Regeneration
$749.00as of 11/04/2026 11:42 PST - Details
View on AmazonSpec score9.0
Pros
+Whole-house system treats water throughout the home
+NSF/ANSI 44 certified softening
+40,000 grain capacity
+15.5 GPM flow rate for multiple fixtures in use
+Metered regeneration uses water based on usage
Cons−Salt-based softening requires regular salt refills
Compared with the 1 Water Softeners on this page−40000 grain capacity: 5 of the 6 here have a higher grain capacity
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