Whirlpool WHES30
A low-cost, NSF certified demand softener for a small household on city water, with excellent salt efficiency.
Blain's Farm & Fleet $469.99$469.99
3.7/5
A certified demand softener for one to four people that also reduces barium and radium, a plus on some well water.
- 32,000 grainsCapacity
- 7.9 gpmService flow
- 4,940 gr/lbSalt efficiency
- YesNSF/ANSI 44
Check price at Home Depot$489
Price checked November 1, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Certified by NSF for capacity, salt efficiency, barium and radium reduction
- Bypass valve included
Cons
- Sold only at Home Depot
- Service flow under 8 gpm suits a small home
The Rheem Preferred RHS family
Every Rheem Preferred RHS model we rank, smallest first. Ratings compare each against its own size.
| Model | Capacity | Rating | Price |
|---|---|---|---|
| Rheem Preferred RHS32 (this one) | 32,000 grains | 3.7/5 | $489 |
| Rheem Preferred Plus RHS42 | 42,000 grains | 3.7/5 | $549 |
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 | RHS32 |
|---|---|
| Capacity | |
| Rated capacity | 32,000 grains |
| Resin | 0.9 cu ft |
| Service flow | 7.9 gpm |
| Salt efficiency | 4,940 grains per lb |
| Highest hardness | 105 gpg |
| Highest iron | 8 ppm |
| Control | |
| Valve | Rheem demand valve |
| Regenerates on demand | Yes |
| App or remote monitoring | No |
| Bypass valve included | Yes |
| Certification and warranty | |
| NSF/ANSI 44 | Yes |
| Valve warranty | 3 years |
| Tank warranty | 10 years |
Alternatives in this size
Aquasure Harmony 32K
A low cost metered softener for a small household on city or well water that wants the basics done cheaply. Buyers who want verified salt efficiency should look at a certified model.
Amazon $523.29$523.29
SoftPro Elite 32,000 Grain
A premium small softener for buyers who want long warranty cover and lower salt use and will pay well above budget brands for it.
Amazon $1,159$1,159
Compare
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