What it does for your water
The Aquasana WH-SF40 40,000-Grain Water Softener is a whole-house softener rated at 40,000 grains. Its listing gives a service flow of 15.5 GPM.
The rating assumes a heavy salt dose; at a salt-saving setting expect about 30,000 grains from its rating, enough for up to 3 people on 15 grains-per-gallon water regenerating weekly, or 2 on 25 grains per gallon. Check it against your hardness.
Other listed details: mounting Whole House Point of Entry; power Corded Electric; capacity stated as 230 lb; model WH-SF40; material Fiberglass; flow 15.5 GPM.
The listing gives dimensions of 48 in (L) x 16 in (W) x 43 in (H) and softener tank, brine tank, valve head, pre-filter, installation kit in the box.
Is it the right unit for your house?
Choose it when
- Up to 3 people on 15 gpg water
- Replacing an older softener
Pass on it when
- More than 2 people on 25 gpg water
- Iron above about 5 ppm without an iron filter
Where it wins and where it loses
Wins
- 40,000-grain rating
- 15.5 GPM service flow
Loses
- Valve not named on the listing
- Plumbing, drain and outlet needed
- Adds some sodium; potassium chloride is the alternative
Limits to know about
- Figures are the maker's or seller's own; check fit and capacity against your water test and your equipment's manual.
Maker's figures
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | WH-SF40 | Retailer |
|---|---|---|
| Dimensions (seller) | 48"L x 16"W x 43"H | Retailer |
| Material | Fiberglass | Retailer |
| Mounting / installation | Whole House Point of Entry | Retailer |
| Method | Ion Exchange, Mechanical Filtration | Retailer |
| Service flow (maker) | 15.5 GPM | Retailer |
| Model name | SimplySoft® 40,000 Grain Softener | Retailer |
| Grain capacity (maker) | 40,000 grains | Retailer |
Units to weigh against it
Other water softeners in the catalog
- Aquasure Harmony Series AS-HS72D 72,000-Grain Water Softener
- AFWFilters Fleck 5600SXT 64,000-Grain Water Softener
- iSpring WCS45KG 45,000-Grain Water Softener
- Aquasana WH-SF60-BASE 60,000-Grain Water Softener
Every water softeners on one grid · All Aquasana units we cover
Final verdict
A practical whole-house softener for up to 3 people on 15 gpg water.
Where to buy
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