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Big Berkey Water Filter System | 2.25 Gal | 2 Black Berkey Filters
Big Berkey Water Filter System (BK4X2-BB) 2.25-Gallon Capacity | Filters Up to 7.0 Gallons Per Hour | 2 Black Berkey Filters Included
The Big Berkey is Berkey's most popular gravity-fed water purification system — trusted by families, RV owners, and emergency preparedness households worldwide. It delivers the same lab-verified purification performance as all Berkey systems in a versatile countertop footprint that scales from 1 to 16 people.
Why Choose the Big Berkey?
Removes 99.999% of viruses , 99.9999% of pathogenic bacteria , chloramine, trihalomethanes, pharmaceuticals, pesticides, heavy metals, and 200+ contaminants
Filters up to 3.5 GPH with 2 filters or 7.0 GPH with 4 filters (upgradeable)
Serves 1–16 people for daily drinking water needs
No electricity, no plumbing — gravity does the work
Lifetime-grade 304 high-polish stainless steel construction
Ideal for home, RV, tiny house, and emergency use
What's Included
Big Berkey upper and lower chambers (304 stainless steel)
2 × Black Berkey Purification Filter Elements
BPA-free, FDA-approved polypropylene spigot
Assembly instructions — ready in minutes, no tools required
Specifications
Capacity
2.25 Gallons (8.5 L)
Dimensions (Assembled)
8.5 × 8.5 × 21.0 in
Dimensions (Nested)
8.5 × 8.5 × 13.0 in
Weight (Empty)
7 lbs
Weight (Full)
25.76 lbs
Material
High-polish 304 stainless steel
Max Filters
4 Black Berkey Elements
Flow Rate (2 filters)
Up to 3.5 GPH
Flow Rate (4 filters)
Up to 7.0 GPH
Filter Lifespan
3,000 gal/filter | 6,000 gal/set of 2
Certifications
Tested to exceed NSF/ANSI Standard 53 by state & EPA-accredited labs
SKU
BK4X2-BB
Availability
Not available in Iowa or California
Black Berkey Filter Performance Each Black Berkey element is composed of high-grade coconut shell carbon blended with 5 proprietary media types. Independent lab testing confirms removal of:
Viruses: 99.999%
Pathogenic bacteria: 99.9999%
Chloramine: below lab detectable limit
Trihalomethanes: 99.8%
Pharmaceuticals: 99.9%
Pesticides: below lab detectable limit
Heavy metals and 200+ total contaminants
*Not yet available in Iowa or California.*
