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Big Berkey
Big Berkey
Big Berkey Size
Big Berkey Water Filter

Big Berkey Water Filter

$387 $405

2.25 Gallon Capacity

The Big Berkey is our most popular water filter system here at BerkeyFilters.com, and for good reasons. It's the perfect size! The functionality of the Big Berkey makes it so versatile that it works for several situations. It’s 2.25 gallon capacity can provide plenty of water for medium-sized families of one to four people, without taking up precious counter or fridge space. This unit fits easily in the kitchen, RV, tiny house or off-grid cabin! The size of the Big Berkey is 21 inches tall and eight and half inches wide. 

With the addition of an extra pair of Black Berkey Filters for a total of 4, and the Big Berkey unit can supply up to 16 people with purified drinking water in emergency situations.

Recommended for 2-4 People

Comes with 2 Filters

Maximum number of filters: 4

Max filtered water GPH: 7

Dimensions: 8.5"D x 21" H

Pay in full or in 4 interest-free installments of $96.75 with Learn More
Free Express Shipping Exclusive Lifetime Warranty 30-day Return

Big Berkey Water Filter System

Capacity: 2.25 Gallons (8.5 L)
Material: 304 AISI Stainless Steel
Finish: High Polish Stainless Steel

Its size and holding capacity make the Big Berkey a highly adaptable unit. It is ideal for medium-sized families of one to four people, and this Berkey filter model is compact enough to easily fit into an RV, tiny house, or cabin.

In emergencies, the Big Berkey system is also large enough to keep over a dozen people hydrated with purified water. Just be sure to use all four filters.

Since the Big Berkey holds 2.25 gallons, it will take about two hours and fifteen minutes for the entire upper chamber to be filtered through to the bottom chamber. Of course, there are some variances, and it may filter faster or slower based on different scenarios.

What You Get When Purchasing a Big Berkey directly from BerkeyFilters.com

  • • Two Black Berkey Filters
  • • Plastic Spigot
  • • Berkey Care Lifetime Warranty

Buy a Big Berkey today and get started with everything you need to purify drinking water without power and without constantly buying and replacing filters. It takes minutes to assemble and can last a lifetime!

*Not yet available in Iowa or California*

Big Berkey Water Filter
Berkey Filters

Black Berkey Filters (Included)

The Big Berkey comes with two Black Berkey Filters that are installed in the top chamber. The Big has a four-filter maximum in the top chamber. Learn More

Berkey Fluoride Water Filter

Fluoride Filters (Add-on)

These filters are not included but can be purchased separately. They attach to the black filters and hang in the lower chamber while reducing fluoride by 97%. Learn More

Berkey Filters Stainless Steel Spigot

Stainless Steel Spigot (Add-on)

This spigot upgrade features a faster flow rate and a secure 1/4 turn open and close design.  Learn More


Big Berkey Water Filter System

Hero Image for the Big Berkey
Filtered Water Capacity   2.25 Gallons (8.5 L)
Product Dimensions 8.5 x 8.5 x 21.0 inches
Product Dimensions w/ Optional Stand 9 x 9 x 27.0 inches
Product Dimensions (Nested) 8.5 x 8.5 x 13.0 inches
Weight Empty 7 lbs

Weight Full

(Lower Chamber Full) 

25.76 lbs
Material High polish 304 stainless steel
Spigot (Included) Material BPA free, FDA approved, high impact polypropylene 
Price (USD)


$387 with 2 Black Berkey Filters (standard configuration)

$547 with 4 Black Berkey Filters

Purification Speed 

(Gallons Per Hour)


Up to 3.5 GPH with 2 Black Berkey Filters (standard configuration)

Up to 7.0 GPH with 4 Black Berkey Filters



Big Berkey is not available yet in Iowa or California (Learn Why)

Black Berkey Purification Filters (2 Included) 

Black Berkey Filters
Contaminants Removed   Two filter elements are included with the Big Berkey system. These have been tested to remove 203 contaminants commonly found in drinking water, including 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 (view entire list of contaminants removed)
Product Dimensions 2.25 x 2.25 x 9.75 inches
Composition Composition of carbon, containing high-grade coconut shell combined with a proprietary blend of 5 other media.
Certifications State and EPA accredited laboratories have tested the filters to exceed NSF/ANSI Standard 531
Lifespan 3,000 gallons per filter. (6,000 gallons per set of 2)

Black Berkey Filters Contaminants Removed

1The Black Berkey purification element formulation has been tested by State and EPA accredited laboratories to exceed NSF/ANSI Standard 53 but has not yet been certified.

Lab Results

How To Information

Big Berkey FAQs

  • Is lead removed from the water by Big Berkey? Yes, the Black Berkey Filters included with a Big Berkey purchase remove 99.9% of lead, as well as other heavy metals.
  • Does the Big Berkey change the pH of my water?  Depending on the type of source water poured into the Berkey, the pH of the water may change after filtering through the system. The pH level may increase if the water is polluted, causing it to be more acidic, purifying it will increase the pH to a neutral 7. 
  • Can the Big Berkey soften hard water? No, Berkey water filters are NOT water softeners. The Black Berkey Filters keep the beneficial minerals in the water, which is what makes water "hard."
  • How do I know if my Big Berkey is working properly? The Red Dye Test is a great way to confirm the Black Berkey Filters are still in good shape, and that no unwanted contaminants are passing through. 
  • More Questions?


Included with every stainless steel Berkey System is a Lifetime Warranty!

There is no need to register. If you ever need to file a warranty claim, all you need is your order number, so please save this number. If at any time the unit housings, standard spigot, washers, hole plugs, knob, or wing-nuts of your stainless steel Berkey System fail in any way due to defects in materials or workmanship, contact us.

30-Day Money-Back Guarantee. Berkey Filters encourages you to test your product once it’s received. For this reason, we accept returns of products in new or used conditionIf you are not satisfied with your purchase, for any reason, within 30 days of receiving your package, you may contact Customer Service to start a return or exchange. Learn more about our warranty policies

If a replacement is needed for a part covered under warranty, don't hesitate to contact our Customer Service for additional information regarding the exchange of an item.

erkey water fill up

Berkey system camping

Berkey on counter filling a pot