Purewell 2.25G 8-Stage Fluoride
#11 in Up to 2.25 galFull review
For homes with fluoridated water they would rather not drink. Plan on replacing the fluoride filters much sooner than the carbon ones.
Amazon $229$229
The Purewell 2.25G 8-Stage Fluoride is the better gravity water filter overall, rated 2.9 to 2.7. The Purewell 2.25G 8-Stage Fluoride leads on element life. The Purewell 9-Stage Fluoride BO-FL costs $20 less ($209 vs $229).
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.
Purewell 9-Stage Fluoride BO-FL
#12 in Up to 2.25 galFull review
A fluoride-focused Purewell with one filter type to stock. Running costs are higher than for the carbon-only models.
Amazon $209$209
Which should you buy?
- Choose the Purewell 2.25G 8-Stage Fluoride for element life (3,000 gal rated per element vs 1,000 gal rated per element).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 2.25 gal gravity water filter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Purewell 2.25G 8-Stage Fluoride | Purewell 9-Stage Fluoride BO-FL |
|---|---|---|
| Overall rating | 2.9/5 | 2.7/5 |
| Value 25% | 56 $101.78 per gallon of capacity ($229, 2.2 gal) | 62 $92.89 per gallon of capacity ($209, 2.2 gal) |
| Running cost 15% | 50 replacement cost or element life not published (neutral score used) | 50 replacement cost or element life not published (neutral score used) |
| Capacity 15% | 17 2.2 gal tank | 17 2.2 gal tank |
| Certification 20% | 0 no certification or test claim published | 0 no certification or test claim published |
| Element life 15% | 100 3,000 gal rated per element | 59 1,000 gal rated per element |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Purewell 2.25G 8-Stage Fluoride | Purewell 9-Stage Fluoride BO-FL | |
|---|---|---|
| Capacity and flow | ||
| Tank capacity | 2.2 gal | 2.2 gal |
| Price per gallon of capacity | $101.78 | $92.89 |
| Elements included | 4 | 2 |
| Maximum elements | 4 | 2 |
| Filtration | ||
| Element type | Black carbon filters plus white fluoride filters | Composite fluoride filter: UF membrane, carbon, KDF, silver ions and fluoride media |
| Certified | None stated | None stated |
| Certification detail | Listing makes no certification claim for this model. | Listing makes no certification claim for this model. |
| Fluoride | Included | Included |
| Fluoride element life | 1,000 gal | 1,000 gal |
| Running cost | ||
| Rated life per element | 3,000 gal each | 1,000 gal each |
| Build | ||
| Material | 304 stainless steel | 304 stainless steel |
| Height | 20 in | 20 in |
| Diameter | 8.8 in | 8.8 in |
| Weight | - | 7.7 lb |