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Big Berkey Gravity-Fed Water Filter System 2.25 Gallon with 2 Black Berkey Elements, 2 Berkey PF-2 Fluoride and Arsenic Reduction Elements
Purchase options and add-ons
Brand | Berkey |
Special Feature | Fluoride and Arsenic Reduction |
Product Dimensions | 19.25"L x 8.5"W x 19.25"H |
Package Information | Can |
Installation Type | Freestanding |
Power Source | Gravity-fed |
Model Name | BK4X2-BB-PF2 |
Upper Temperature Rating | 212 Degrees Fahrenheit |
UPC | 197644206384 |
Manufacturer | Berkey |
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About this item
- ENJOY GREAT-TASTING TAP WATER EVERY DAY AT HOME- The 2.25-gallon Big Berkey System can be used on a countertop in your kitchen or office to transform tap water into delicious drinking water that's also ideal for making your favorite beverages or cooking.
- FLUORIDE AND ARSENIC REDUCTION- Berkey PF-2 Fluoride and Arsenic Reduction Elements replacement filters are designed for use in conjunction with Black Berkey Elements to adsorb fluoride, arsenic(V) and pre-oxidized arsenic(III), and other residual typical heavy metal ions.
- INDEPENDENT TESTING- Black Berkey Elements (the original BB9-2) are composed of a unique, proprietary blend of multiple media types backed by testing from accredited, third-party labs. Black Berkey Elements remove or dramatically reduce over 250+ typical contaminants that could be present in freshwater sources—no electricity, tools, or plumbing are required.
- THE ORIGINAL BERKEY BB9-2 AND PF-2 FILTERS- Don't fall for lookalike filters that use our Berkey BB9-2 or PF-2 model number or trademarks in their titles or product descriptions to legitimize their brand as replacements or "compatible", when they are not. Black Berkey Elements are designed to work synergistically with Berkey PF-2 filters to target specific contaminants that far exceed the reduction capabilities of cheap knock-off filter brands.
- ECONOMICAL, LONG-LASTING- Black Berkey Elements provide filtered water for just pennies per gallon. Each pair of Black Berkey Elements lasts for up to 6,000 gallons before replacement is recommended. Black Berkey Elements may require replacement sooner based upon the quality of influent water. We recommend replacing Berkey PF-2 Fluoride and Arsenic Reduction Elements after 1,000 gallons of use, under normal conditions.
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This product has sustainability features recognized by trusted certifications.Recycled materialsContains at least 50% recycled material.As certified byProducts certified to the Recycled Claim Standard (RCS) contain recycled content that has been independently verified at each stage of the supply chain, from the source to the final product. The purchase of Recycled Claim Standard (RCS) certified products demonstrates demand for recycled materials.Certification BodyGCL International Ltd.Certification NumberTE-00297367 - Sustainability features for this product
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This product has sustainability features recognized by trusted certifications.Organic contentProduct contains at least 95% organic material.As certified byEU Organic
EU Organic products must contain at least 95% organic ingredients. EU Organic production is an overall system of farm management and food production that combines environmental practices, the preservation of natural resources and the application of animal welfare standards. Products must fulfill strict conditions on how they must be produced, processed, transported and stored. The control body code number and place where the agricultural materials of the product have been farmed are displayed next to the EU Organic logo.USDA Organic
USDA Organic is protected by law, inspected by experts, traced from farm to store, and shaped by public input. USDA develops and enforces the organic standards, which require products to be produced using farming practices that maintain and improve soil and water quality, minimize the use of synthetic materials, conserve biodiversity, and avoid genetic engineering, among other factors. Crops can be certified organic if they’re grown without prohibited substances such as most synthetic fertilizers and pesticides for three years prior to harvest. Livestock are raised on pasture and treated humanely without growth hormones or antibiotics. Organic products do not contain GMOs or artificial colors, flavors, or preservatives. Products that contain a minimum of 95 percent organic ingredients and use the USDA Organic seal are part of Climate Pledge Friendly. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Organic contentProduct contains at least 95% organic material.As certified byUSDA Organic
USDA Organic is protected by law, inspected by experts, traced from farm to store, and shaped by public input. USDA develops and enforces the organic standards, which require products to be produced using farming practices that maintain and improve soil and water quality, minimize the use of synthetic materials, conserve biodiversity, and avoid genetic engineering, among other factors. Crops can be certified organic if they’re grown without prohibited substances such as most synthetic fertilizers and pesticides for three years prior to harvest. Livestock are raised on pasture and treated humanely without growth hormones or antibiotics. Organic products do not contain GMOs or artificial colors, flavors, or preservatives. Products that contain a minimum of 95 percent organic ingredients and use the USDA Organic seal are part of Climate Pledge Friendly. - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Organic contentProduct contains at least 95% organic material.As certified byUSDA Organic
USDA Organic is protected by law, inspected by experts, traced from farm to store, and shaped by public input. USDA develops and enforces the organic standards, which require products to be produced using farming practices that maintain and improve soil and water quality, minimize the use of synthetic materials, conserve biodiversity, and avoid genetic engineering, among other factors. Crops can be certified organic if they’re grown without prohibited substances such as most synthetic fertilizers and pesticides for three years prior to harvest. Livestock are raised on pasture and treated humanely without growth hormones or antibiotics. Organic products do not contain GMOs or artificial colors, flavors, or preservatives. Products that contain a minimum of 95 percent organic ingredients and use the USDA Organic seal are part of Climate Pledge Friendly. - Sustainability features for this product
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This product has sustainability features recognized by trusted certifications.Packaging efficiencyReduced air and/or water in the product or packaging for more efficient transportation.As certified byCompact by Design (Amazon-developed Certification)
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Sustainability features
This product has sustainability features recognized by trusted certifications.Organic contentProduct contains at least 95% organic material.As certified byUSDA Organic
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Product details
- Product Dimensions : 19.25 x 8.5 x 19.25 inches; 8.15 Pounds
- Item model number : BK4X2-BB-PF2
- Date First Available : July 12, 2023
- Manufacturer : Berkey
- ASIN : B0CBVKJXNH
- Best Sellers Rank: #166,705 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
- Customer Reviews:
Top Brand: Berkey
Product Description


Big Berkey Gravity-Fed Water Filter System with Two Black Berkey Elements and Two Berkey PF-2 Fluoride and Arsenic Reduction Elements
The 2.25-gallon Big Berkey System can be used on a countertop in your kitchen or office to transform bad-tasting tap water into delicious drinking water that's also ideal for making your favorite beverages or cooking.
Independently Tested Filter Elements
Black Berkey Elements (the original BB9-2) are composed of a unique, proprietary blend of multiple media types backed by testing from accredited, third-party labs. Black Berkey Elements remove or dramatically reduce over 200+ typical contaminants that could be present in freshwater sources.
The Gold Standard in Gravity-Fed Water Filtration
Authentic Black Berkey Elements are capable of greater contaminant reduction and a longer lifespan than virtually any of the other filter elements on the market. Berkey systems are simple and easy to use and require no electricity, costly installation, or tools, providing economical, long-lasting water filtration for just pennies a gallon.
- 2.25 gallon storage capacity
- Includes 2 Black Berkey Elements, but this system can be expanded to 4
- Includes 2 Berkey PF-2 Fluoride and Arsenic Reduction Elements
- 19.25" tall when in use
- Diameter: 8.5"
- Versatile and compact—ideal for small to medium families for everyday use at home or travel
- No electricity, tools or plumbing required
- Constructed of highly polished AISI 304 stainless steel

Two Berkey PF-2 Fluoride and Arsenic Reduction Elements Included
Berkey PF-2 Fluoride and Arsenic Reduction Elements are designed for use in conjunction with Black Berkey Elements to adsorb:
- Fluoride
- Arsenic(V)
- Re-oxidized arsenic(III)
- Other residual typical heavy metal ions
Berkey PF-2 Fluoride and Arsenic Reduction Elements attach to the bottom of Black Berkey Elements and sit in the lower chamber of a Berkey system.
We recommend replacing Berkey PF-2 Fluoride and Arsenic Reduction Elements after 1,000 gallons of use, under normal conditions.
Big Berkey System Specifications
Berkey Systems are Designed to Meet the Specific Needs of Consumers Seeking Practical and Cost-Effective Water Fltration Solutions.

Berkey systems are simple and easy to use and require no electricity, costly installation, or tools, providing economical, long-lasting water filtration for just pennies a gallon. Berkey systems have been used for over two decades in homes every day around the world by discerning consumers who trust the quality of authentic Berkey systems to meet their drinking water needs. Berkey gravity-fed water systems are available in 7 sizes.
Optional accessories also available (sold separately or included with some system bundles) include our Berkey Sight Glass Spigot, Berkey Stainless Steel Spigot, Stainless Steel Berkey Water View Spigot, Berkey Base Stainless Steel Stand and Berkey PF-2 Fluoride and Arsenic Reduction Elements.
Easy and Economical to Use
Berkey systems can be used at home or on the go. No electricity, costly installation, or tools required.
- Simply pour water into top chamber.
- Water is filtered through our unique, powerful filters that utilize a proprietary blend of media and are backed by independent third-party testing.
- Dispense water from spigot. Berkey systems are ideal for everyday use.
Powerful Contaminant Reduction
Berkey water filtration systems equipped with Black Berkey Elements have been tested by third-party labs to remove or reduce over 200+ commonly found contaminants from drinking water sources.
Only Buy Authentic
Don’t settle for lookalike systems, accessories or filters that say "the same as Berkey", "compatible with" or "replacement for" or "fits" Berkey products. Always go with the brand you can trust—original, authentic Berkey filters and systems that exceed the reduction capabilities of cheap knock-off and lookalike brands.
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Price | — no data | $446.00$446.00 | — no data | $526.00$526.00 | $599.99$599.99 | $387.00$387.00 |
Capacity | 1.5 Gallons | 2.25 Gallons | 3.25 Gallons | 4.5 Gallons | 6 Gallons | 2.75 Gallons |
Height (Assembled) | 18" | 19.25" | 23" | 26" | 30" | 21" (when used without base); 26.5" (with base) |
Diameter | 7.5" | 8.5" | 9.5" | 10" | 11" | 9" |
Easily serves | 1-3 people | 1-4 people | 2-4 people | 4-8 people | 6-12 people | 1-5 people |
Black Berkey Elements Included | 2 Black Berkey Elements included | 2 Black Berkey Elements included (system can hold a maximum of 4) | 2 Black Berkey Elements included (system can hold a maximum of 4) | 2 Black Berkey Elements included (system can hold a maximum of 6) | 2 Black Berkey Elements included (system can hold a maximum of 8) | 2 Black Berkey Elements included (system can hold a maximum of 4) |
Gallons for Each Pair of Black Berkey Elements Before Replacement is Recommended | 6,000 gallons | 6,000 gallons (12,000 gallons with maximum number of Black Berkey Elements installed, additional elements sold separately) | 6,000 gallons (12,000 gallons with maximum number of Black Berkey Elements installed, additional elements sold separately) | 6,000 gallons (18,000 gallons with maximum number of Black Berkey Elements installed, additional elements sold separately) | 6,000 gallons (24,000 gallons with maximum number of Black Berkey Elements installed, additional elements sold separately) | 6,000 gallons (12,000 gallons with maximum number of Black Berkey Elements installed, additional elements sold separately) |
Berkey PF-2 Fluoride and Arsenic Reduction Elements Included | 2 Berkey PF-2 Elements included | 2 Berkey PF-2 Elements included (system can hold a maximum of 4, additional elements sold separately) | 2 Berkey PF-2 Elements included (system can hold a maximum of 4, additional elements sold separately) | 2 Berkey PF-2 Elements included (system can hold a maximum of 6, additional elements sold separately) | 2 Berkey PF-2 Elements included (system can hold a maximum of 8, additional elements sold separately) | 2 Berkey PF-2 Elements included (system can hold a maximum of 4, additional elements sold separately) |
Gal. for Each Pair of PF-2 Fluoride & Arsenic Reduction Elements Before Replacement is Recommended | 1,000 gallons | 1,000 gallons (2,000 gallons with maximum number of Berkey PF-2 Elements installed, additional elements sold separately) | 1,000 gallons (2,000 gallons with maximum number of Berkey PF-2 Elements installed, additional elements sold separately) | 1,000 gallons (3,000 gallons with maximum number of Berkey PF-2 Elements installed, additional elements sold separately) | 1,000 gallons (4,000 gallons with maximum number of Berkey PF-2 Elements installed, additional elements sold separately) | 1,000 gallons (2,000 gallons with maximum number of Berkey PF-2 Elements installed, additional elements sold separately) |
Chamber Construction | AISI 304 Stainless Steel | AISI 304 Stainless Steel | AISI 304 Stainless Steel | AISI 304 Stainless Steel | AISI 304 Stainless Steel | Non-BPA/BPS co-polyester |
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the water filter system easy to put together and use, with great-tasting water and safe drinking water quality. They consider it the very best water filter, and one customer mentions it pays for itself in a few months. They appreciate its ease of cleaning, with one noting how simple the filter flushing process is.
AI-generated from the text of customer reviews
Customers like the taste of the filtered water.
"Easy to set up. Easy to use. Water tastes great!" Read more
"You can actually taste the difference. It’s taste more like fresh spring water...." Read more
"Water tastes better than any other I’ve had, including bottled." Read more
"...It’s amazing how much better the tap water tastes using the Berkey. No more buying bottles of water, it pays for itself in a few months...." Read more
Customers appreciate the water purification system's ability to provide safe drinking water, with one customer noting that it removes chlorine.
"...We couldn’t be more happy with this purchase, and look forward to our pure water from the Berkey for years to come." Read more
"Excellent water! Too bad you can’t get filters any more" Read more
"...Water tastes 100% better and we know we are not intaking chlorine, pfas or microbes...." Read more
"Great water!..." Read more
Customers praise the water filter's quality.
"Everything. This unit is top notch. Used everyday with black and fluoride arsenic filters" Read more
"Legit filtration. Water taste smooth af. Clean and clear." Read more
"This is the very best water filter I’ve ever had. Water is very clean tasting!!! Very happy and was worth it!!! Happy I’ve got it!!" Read more
"Great Filter..." Read more
Customers find the water purification system to be a good investment, with one mentioning it pays for itself in a few months.
"Second one - easy to put together and use - easy to clean - good investment!" Read more
"...It’s definitely worth the cost for filtered water you can trust!" Read more
"...No more buying bottles of water, it pays for itself in a few months. Helps save the environment." Read more
"...Water is very clean tasting!!! Very happy and was worth it!!! Happy I’ve got it!!" Read more
Customers find the water purification system easy to clean, with one mentioning that flushing the filters is particularly simple.
"Second one - easy to put together and use - easy to clean - good investment!" Read more
"...It was easy to assemble, and flushing the filters was really easy, just make sure to read all of the instructions before starting the process...." Read more
"Legit filtration. Water taste smooth af. Clean and clear." Read more
Customers find the water purification system easy to put together and use.
"Easy to set up. Easy to use. Water tastes great!" Read more
"Second one - easy to put together and use - easy to clean - good investment!" Read more
"...It was easy to assemble, and flushing the filters was really easy, just make sure to read all of the instructions before starting the process...." Read more
Reviews with images

Best water filter ever!
Top reviews from the United States
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- Reviewed in the United States on February 15, 2025Easy to set up. Easy to use. Water tastes great!
- Reviewed in the United States on December 6, 2024Second one - easy to put together and use - easy to clean - good investment!
- Reviewed in the United States on February 23, 2025You can actually taste the difference. It’s taste more like fresh spring water. Expensive unit because I purchased all four filters to eliminate the fluoride and arsenic in the water. But better than buying bottled water all the time.
- Reviewed in the United States on July 15, 2024My husband and I placed this on our wedding registry. We ended up getting gift cards and knew immediately we wanted the Berkey first and foremost out of everything we had left. It was easy to assemble, and flushing the filters was really easy, just make sure to read all of the instructions before starting the process. By doing this you’ll make sure you follow the steps and that you use the proper attachments to do the flushing of the filters. We couldn’t be more happy with this purchase, and look forward to our pure water from the Berkey for years to come.
- Reviewed in the United States on November 4, 2024We rode the fence for months reading reviews on several filtering systems. Finally, we bit the bullet and bought this one. Now we wish we would have invested in this years ago. It’s definitely worth the cost for filtered water you can trust!
- Reviewed in the United States on April 12, 2025Excellent water! Too bad you can’t get filters any more
- Reviewed in the United States on March 30, 2025All in all I have purchased 4 Berkey water filters, for myself and for my kids. Not sure why but the quality is not what if used to be.
- Reviewed in the United States on December 27, 2024Everything. This unit is top notch. Used everyday with black and fluoride arsenic filters
Top reviews from other countries
- Amazon CustomerReviewed in Canada on February 5, 2025
3.0 out of 5 stars Slow Water Filtering Rate
I bought the 2.25 gal system with 2 black elements and 2 white PF-2 Elements in November 2024. I primed all 4 elements four times during a month-long try out period. The water filtering rate was mostly fast for the first top quarter tank, and the remaining portion was very slow. Sometime it still remained 1/3 tank unfiltered after overnight. The most unbearable was the white residue (powder) stayed on the surface of the lower tank, my kettle and water bottles. I suspected some of my filtering elements were defective. I eventually returned it.
- JRWReviewed in Canada on October 19, 2023
3.0 out of 5 stars Not all that impressed for the money
I bought this water filter system because I was tired of filling my zero pitcher in the fridge. My zero pitcher gave me a reading of 0
My berkey is reading over 100. My city water is only 140
What did I pay for ??
Not impressed !!
Zero is better but just a pain because the filter is expensive and doesn’t last long ..
Product summary presents key product information
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Product Summary: Big Berkey Gravity-Fed Water Filter System 2.25 Gallon with 2 Black Berkey Elements, 2 Berkey PF-2 Fluoride and Arsenic Reduction Elements
From Berkey
About this Item
- ENJOY GREAT-TASTING TAP WATER EVERY DAY AT HOME- The 2.25-gallon Big Berkey System can be used on a countertop in your kitchen or office to transform tap water into delicious drinking water that's also ideal for making your favorite beverages or cooking.
- FLUORIDE AND ARSENIC REDUCTION- Berkey PF-2 Fluoride and Arsenic Reduction Elements replacement filters are designed for use in conjunction with Black Berkey Elements to adsorb fluoride, arsenic(V) and pre-oxidized arsenic(III), and other residual typical heavy metal ions.
- INDEPENDENT TESTING- Black Berkey Elements (the original BB9-2) are composed of a unique, proprietary blend of multiple media types backed by testing from accredited, third-party labs. Black Berkey Elements remove or dramatically reduce over 250+ typical contaminants that could be present in freshwater sources—no electricity, tools, or plumbing are required.
- THE ORIGINAL BERKEY BB9-2 AND PF-2 FILTERS- Don't fall for lookalike filters that use our Berkey BB9-2 or PF-2 model number or trademarks in their titles or product descriptions to legitimize their brand as replacements or "compatible", when they are not. Black Berkey Elements are designed to work synergistically with Berkey PF-2 filters to target specific contaminants that far exceed the reduction capabilities of cheap knock-off filter brands.
- ECONOMICAL, LONG-LASTING- Black Berkey Elements provide filtered water for just pennies per gallon. Each pair of Black Berkey Elements lasts for up to 6,000 gallons before replacement is recommended. Black Berkey Elements may require replacement sooner based upon the quality of influent water. We recommend replacing Berkey PF-2 Fluoride and Arsenic Reduction Elements after 1,000 gallons of use, under normal conditions.
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