Culligan MaxClear Venture 3 Filters
The fully loaded Venture. It makes sense for a busy kitchen where a one-filter system would hold up the line.
Amazon $309$309
3 galNSF/ANSI 42
3.0/5
A Royal Berkey sized 3 gal stainless filter with long-life carbon filters. A fair price, but the filters lack an NSF reduction certification.
- 3 galCapacity
- NSF/ANSI/CAN 372Certification
- 6,000 gal eachElement life
- Add-on filterFluoride
Check price at Amazon$399
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Takes up to four filters rated 6,000 gal each, so filters last years in most homes
- Vented upper chamber stops airlocks that slow the drip
- Filters also fit Berkey systems, so you can switch brands later
Cons
- Only a lead-free materials certification, no NSF contaminant reduction certification
- No flow rate or warranty in the listing
- Fluoride filter costs extra
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 | 1.8 gal | 2.6/5 | $349 |
| Boroux Legacy 3 Gal (this one) | 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-3 + BX-FND9-2 |
|---|---|
| Capacity and flow | |
| Tank capacity | 3 gal |
| Price per gallon of capacity | $133 |
| Elements included | 2 |
| Maximum elements | 4 |
| 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 | 23 in |
| Diameter | 9 in |
| Weight | 9.5 lb |
Alternatives in this capacity
ProOne Big+ 3 Gal
A 3 gal stainless gravity filter that uses ProOne G2.0 filters. A mid-priced option, though the listing publishes little about flow, filter gallons or warranty.
Amazon $229.95$229.95
3 galNSF/ANSI 42
Royal Berkey
The middle Berkey for a household that drinks and cooks with filtered water. A step up from the Big Berkey without needing much more space.
Amazon $408$408
3.2 galTested only3,000 gal each
Compare
Compare the Boroux Legacy 3 Gal with any other gravity water filter →
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