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
3.3/5
A budget metered softener sized for a typical family with hard water. It costs little per grain, but its capacity and salt use are not independently verified.
- 48,000 grainsCapacity
- NoNSF/ANSI 44
Check price at Amazon$629.99
Price checked November 1, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Low price for 48,000 grains from a maker that publishes a manual and warranty
- Regenerates by metered water use, so salt is spent only after soft water is used
- Bypass valve and 10 year tank warranty included
Cons
- No NSF/ANSI 44 certification, so capacity and salt use are the maker’s own figures
- Aquasure publishes no system service flow or salt efficiency
- The 5 year valve warranty drops to 1 year unless you register within 60 days
The Aquasure Harmony family
Every Aquasure Harmony model we rank, smallest first. Ratings compare each against its own size.
| Model | Capacity | Rating | Price |
|---|---|---|---|
| Aquasure Harmony 32K | 32,000 grains | 3.2/5 | $523.29 |
| Aquasure Harmony 48K (this one) | 48,000 grains | 3.3/5 | $629.99 |
| Aquasure Harmony 64K | 64,000 grains | 3.2/5 | $749.99 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | AS-HS48D |
|---|---|
| Capacity | |
| Rated capacity | 48,000 grains |
| Resin | 1.5 cu ft |
| Control | |
| Valve | Aquatrol digital metered |
| Regenerates on demand | Yes |
| App or remote monitoring | No |
| Bypass valve included | Yes |
| Resin tank | 10 x 54 in |
| Certification and warranty | |
| NSF/ANSI 44 | No |
| Valve warranty | 5 years |
| Tank warranty | 10 years |
Alternatives in this size
Whirlpool WHES40
A good value 40,000 grain softener for a family of three to five, with certified salt efficiency and strong iron handling.
Blain's Farm & Fleet $579.99$579.99
SoftPro Elite 48,000 Grain
A premium family size softener for buyers who want long warranty cover and lower salt use and will pay for it.
Amazon $1,289$1,289
Compare
Compare the Aquasure Harmony 48K with any other water softener →
More from Aquasure: every Aquasure product ranked.