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
2.2 galNone stated3,000 gal each
2.6/5
A small stainless gravity filter for one or two people with long-life filters. It costs more per gallon of tank than larger rivals.
- 1.8 galCapacity
- NSF/ANSI/CAN 372Certification
- 6,000 gal eachElement life
- Add-on filterFluoride
Check price at Amazon$349
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Two carbon filters rated 6,000 gal each run for years before replacement
- Small 17.5 in tall stainless tank fits under kitchen cabinets
- Filters also fit Berkey systems, so you can switch brands later
Cons
- Only a lead-free materials certification, no NSF contaminant reduction certification
- Costs more than most 2.25 gal stainless filters
- No flow rate or warranty in the listing
The Boroux family
Every Boroux model we rank, smallest first. Ratings compare each against its own capacity.
| Model | Capacity | Rating | Price |
|---|---|---|---|
| Boroux Compact 1.8 Gal (this one) | 1.8 gal | 2.6/5 | $349 |
| Boroux Legacy 3 Gal | 3 gal | 3.0/5 | $399 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its capacity. How we rank explains each one.
Specifications
| Model number | BX-L-SYS-COM + BX-FND9-2 |
|---|---|
| Capacity and flow | |
| Tank capacity | 1.8 gal |
| Price per gallon of capacity | $193.89 |
| Elements included | 2 |
| Filtration | |
| Element type | Boroux Foundation Black carbon element, 9.5 in |
| Certified | NSF/ANSI/CAN 372 |
| Certification detail | Filter listing (maker copy): NSF/ANSI/CAN 372 certified by WQA, a lead-free materials standard, not a contaminant reduction certification. System listing: filters tested and independently verified by third-party accredited laboratories, none named. |
| Fluoride | Add-on filter |
| Running cost | |
| Rated life per element | 6,000 gal each |
| Replacement element | 79.5 $ |
| Cost per gallon filtered | $0.013 |
| Build | |
| Material | 304 stainless steel |
| Height | 17.5 in |
| Diameter | 8 in |
Alternatives in this capacity
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
2.2 galNone stated1,000 gal each
Big Berkey
#14 in Up to 2.25 galFull review
The best known countertop gravity filter, sized for a small family. Priced well above lookalikes with the same capacity.
Amazon $367$367
2.2 galTested only3,000 gal each
Compare
Compare the Boroux Compact 1.8 Gal with any other gravity water filter →
More from Boroux: every Boroux product ranked.