Aquasana SimplySoft 40K
A certified, salt efficient cabinet softener for a family of up to five on city water. Pick it over cheaper uncertified units if you want verified salt savings.
Amazon $749$749
The Aquasana SimplySoft 40K rates 3.5 among 32,001 to 48,000 grains water softeners; the Aquasana SimplySoft 60K rates 3.2 among over 48,000 grains ones. The Aquasana SimplySoft 40K costs $300 less ($749 vs $1,049).
Aquasana SimplySoft 60K
A certified, salt efficient softener for a large household with very hard water that does not need high flow. Homes with many bathrooms in use at once should look for more flow.
Amazon $1,049$1,049
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 | Aquasana SimplySoft 40K | Aquasana SimplySoft 60K |
|---|---|---|
| Overall rating | 3.5/5 | 3.2/5 |
| Value 30% | 43 $18.72 per 1,000 grains ($749, 40,000 grains) | 31 $17.48 per 1,000 grains ($1,049, 60,000 grains) |
| Salt efficiency 20% | 71 4,423 grains per lb of salt | 77 4,543 grains per lb of salt |
| Flow 15% | 50 11 gpm service flow | 14 11.1 gpm service flow |
| Warranty 25% | 44 5 years on the valve, 10 years on the tanks | 44 5 years on the valve, 10 years on the tanks |
| Certification 10% | 100 certified to NSF/ANSI 44 | 100 certified to NSF/ANSI 44 |
Specifications
| Aquasana SimplySoft 40K | Aquasana SimplySoft 60K | |
|---|---|---|
| Capacity | ||
| Rated capacity | 40,000 grains | 60,000 grains |
| Resin | 1 cu ft | 1.5 cu ft |
| Service flow | 11 gpm | 11.1 gpm |
| Salt efficiency | 4,423 grains per lb | 4,543 grains per lb |
| Highest hardness | 200 gpg | 200 gpg |
| Highest iron | 1 ppm | 1 ppm |
| Control | ||
| Regenerates on demand | Yes | Yes |
| App or remote monitoring | No | No |
| Bypass valve included | Yes | Yes |
| Resin tank | 10 x 35 in | 12 x 35 in |
| Certification and warranty | ||
| NSF/ANSI 44 | Yes | Yes |
| Valve warranty | 5 years | 5 years |
| Tank warranty | 10 years | 10 years |