Aquasana SimplySoft 40,000 Grain Softener (WH-SF40) Water softener, checked against its listings
- Maker’s list price
- $1,698
- Five years
- $2,031
- Service flow
- 11.02 gpm
- Built for
- City or well water
- Connections
- 1 in. (reducers for 3/4 in. included)
Product recordListings checked Oct. 4, 2026
What the listings say
NSF/ANSI 44 · IAPMO listing
Hardness
Read the listing, checked Oct. 4, 2026
Certified for, and claimed
Certified, by a listing
Claimed by the maker only
- hard water minerals
- hardness up to 200 grains per gallon
What it costs over five years
Household of 3, 240 gallons a day through the whole house. Installation not included.
| Item | Replaced | Count | Amount |
|---|---|---|---|
| System, with first media | — | 1 | $1,698 |
| 20-inch pre-filter, 3-pack (EQ-303-20) | Every 6 monthsmonth rating | 9 | $333 |
Five-year total$2,031
Per gallon0.5¢
Worth knowing
IAPMO lists it as efficiency rated with hardness as its only claim, at 11.02 gpm. Salt-based ion exchange; needs a drain line and a 120V outlet. The maker says it is for city or well water, and that chlorine, iron or bacteria may need additional filtration. Price recorded is the $1,698 MSRP; Aquasana showed $849 on Oct. 4, 2026. Pre-filters come only in 3-packs at $36.99 and each lasts up to 2 months, so one pack is recorded as 6 months. Salt is not counted in the cost.
Install requirements
- Kind
- Water softener
- Rated media life
- Not stated
- Needs a drain
- Yes
- Needs power
- Yes