iSpring WGB22B
#5 in CartridgeFull review
A sensible upgrade on the WGB21B for a family on chlorinated city water, with filters that last longer and cost little per gallon.
Amazon $286.70$286.70
The iSpring WGB22B is the better whole-house water filter overall, rated 3.1 to 2.7. The iSpring WGB22B leads on certification, running cost and price. The Home Master HMF2SdgC wins on warranty. The iSpring WGB22B costs $73.25 less ($286.70 vs $359.95).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Home Master HMF2SdgC
#11 in CartridgeFull review
A high flow two stage system for chlorinated city water with some grit. Pick a catalytic carbon model if your city uses chloramine.
Amazon $359.95$359.95
Which should you buy?
- Choose the iSpring WGB22B for certification (tested to NSF/ANSI 42, not certified vs no certification in a public listing, no tested to claim), running cost ($0.83 per 1,000 gallons ($82.97 every 100,000 gallons) vs $1.39 per 1,000 gallons ($139.25 every 100,000 gallons)) and price ($286.70 vs $359.95).
- Choose the Home Master HMF2SdgC for warranty (2-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every cartridge whole-house water filter; a clear win is highlighted. How we rank explains each one.
| Factor weight | iSpring WGB22B | Home Master HMF2SdgC |
|---|---|---|
| Overall rating | 3.1/5 | 2.7/5 |
| Running cost 25% | 47 $0.83 per 1,000 gallons ($82.97 every 100,000 gallons) | 28 $1.39 per 1,000 gallons ($139.25 every 100,000 gallons) |
| Certification 25% | 30 tested to NSF/ANSI 42, not certified | 0 no certification in a public listing, no tested to claim |
| Flow 15% | 100 15 gpm service flow | 100 20 gpm service flow |
| Price 20% | 61 $286.70 | 48 $359.95 |
| Warranty 15% | 0 1-year warranty | 11 2-year warranty |
Specifications
| iSpring WGB22B | Home Master HMF2SdgC | |
|---|---|---|
| Filtration | ||
| Capacity | 100,000 gallons | 100,000 gallons |
| Replacement filters or media | $82.97 | $139.25 |
| Running cost | $0.83 per 1,000 gal | $1.39 per 1,000 gal |
| Stages | 2 | 2 |
| Tested to (not certified) | NSF/ANSI 42 | - |
| Chloramine | No | No |
| PFAS | No | No |
| Build | ||
| Flow | 15 gpm | 20 gpm |
| Ports | 1 in | 1 in |
| UV stage | No | No |
| Warranty | 1 year | 2 years |