iSpring WGB32B-KSNC
#9 in CartridgeFull review
For homes on chloramine treated city water that want cartridges rather than a tank. Check replacement filter prices before buying.
Amazon $639.99$639.99
2.6/5
For homes worried about lead pipes or with chloramine treated water. The lead claim is not certified, so test the water if lead is the main concern.
- $2.44 per 1,000 galRunning cost
- 50,000 gallonsCapacity
- 15 gpmFlow
Check price at Amazon$230.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- A lead reducing filter in place of plain sediment, for older service lines
- iSpring claims chloramine reduction, which most cheap systems do not
- Compact 10 in housings fit tight utility spaces
Cons
- Lead filter set costs nearly as much as the cheaper systems themselves
- No certification or stated test standard for the lead claim
- Small filters need changing several times a year in a busy house
The iSpring WGB Series family
Every iSpring WGB Series model we rank, smallest first. Ratings compare each against its own build.
| Model | Running cost | Rating | Price |
|---|---|---|---|
| iSpring WGB21B | $0.90 per 1,000 gal | 3.4/5 | $155.99 |
| iSpring WGB21B-PB (this one) | $2.44 per 1,000 gal | 2.6/5 | $230.99 |
| iSpring WGB22B | $0.83 per 1,000 gal | 3.1/5 | $286.70 |
| iSpring WGB32B | $1.15 per 1,000 gal | 2.9/5 | $420 |
| iSpring WGB32B-KSNC | - | 2.8/5 | $639.99 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its build. How we rank explains each one.
Specifications
| Model number | WGB21B-PB |
|---|---|
| Filtration | |
| Capacity | 50,000 gallons |
| Replacement filters or media | $121.99 |
| Running cost | $2.44 per 1,000 gal |
| Stages | 2 |
| Chloramine | Yes |
| PFAS | No |
| Build | |
| Flow | 15 gpm |
| Ports | 1 in |
| UV stage | No |
| Warranty | 1 year |
Alternatives in this build
Express Water Essential Pro WH300SCGS-S
#10 in CartridgeFull review
A tidy, frame mounted three stage system for city water with some grit. Its certification claim is vague.
Amazon $469.99$469.99
Home Master HMF2SmgCC
#12 in CartridgeFull review
A cartridge system built for chloramine treated city water, with a longer warranty than most at this price.
Amazon $375.68$375.68
Compare
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