Imperial Berkey Water Filter 4.5 Gal
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Learn more on the high output Imperial Berkey®




Imperial Berkey Water Filter
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Quickly becoming one of the most popular systems, the Royal Berkey holds more water and filters it 14% faster than the Big!
- Min. 2 Filters: 2-6 People
- Max 4 Filters: 7 people
- Flow Rate (Gallon Per Hour)
2 filters : 4GPH
4 filters : 8GPH - Dimensions: 9.5”D x 24”H
- Empty weight: 8lbs
4.5 Gallon Capacity
A great model for large families with large water consumption. Recommended for 6-10 people and includes 2 Black Berkey Filters but can support up to 6 for quicker filtering. The Berkey Care Lifetime warranty is included with every new unit purchase, an exclusive benefit for Berkey Filters customers!
Recommended for 6-10+ People
Comes with 2 Filters
Maximum number of filters: 6
Max filtered water GPH: 16.5
Dimensions: 10"D x 27"H
Learn more on the high output Imperial Berkey®
Imperial Berkey Water Filter System
Capacity: 4.5 Gallons (17 L)
Material: 304 Stainless Steel
Finish: High Polish Stainless Steel
Berkey originally focused on water filters designed to meet the needs of families and small groups. We recognized the growing need for a water filter that could service larger groups like churches, schools, and orphanages through multiple years of consumer feedback. These unique customers had been purchasing multiple smaller units to meet the production output necessary to supply water to larger numbers of people.
When developing the Imperial Berkey, the first concern was that the upper chamber was not tall enough to produce the water pressure needed to push large amounts of water through the Black Berkey purification elements. Each foot of height produces approximately 0.5 pounds of water pressure used to push the water down through the filters.
The second concern was the number of filters the unit could hold. Each filter needs to have a certain amount of space to filter properly. The smaller units' diameter was not large enough to accommodate more than four filters, so we increased the diameter of the lower storage container to accommodate up to six filter elements. The extra purification elements increased the water flow capacity to sixteen gallons per hour when the Imperial was full.
*Not yet available in Iowa or California*


Black Berkey Filters (Included)
The Imperial Berkey comes with two Black Berkey Filters that are installed in the top chamber. The Imperial has a six filter maximum in the top chamber. Learn More

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 up to 97%. Learn More
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
Specifications
Imperial Berkey Water Filter System

Filtered Water Capacity | 4.5 Gallons (17 L) |
Product Dimensions | 10 x 10 x 27 inches |
Product Dimensions (Nested) | 10 x 10 x 19 inches |
Weight Empty | 10 lbs |
Weight Full (Lower Chamber Full) |
47.5 lbs |
Material | High polish 304 stainless steel |
Spigot (Included) Material | BPA free, FDA approved, high impact polypropylene |
Price (USD) |
$335 with 2 Black Berkey Filters (standard configuration) $445 with 4 Black Berkey Filters $555 with 6 Black Berkey Filters |
Purification Speed (Gallons Per Hour) |
Up to 5.5 GPH with 2 Black Berkey Filters (standard configuration) Up to 11 GPH with 4 Black Berkey Filters Up to 16.5 GPH with 4 Black Berkey Filters |
Availability |
Not yet available in Iowa or California (Learn Why) |
Black Berkey Purification Filters (2 included)

Contaminants (Removal Rate) | Viruses (99.999%), Pathogenic Bacteria (99.9999%), Chloramine (below lab detectable limit), Trihalomethanes (99.8%), pharmaceuticals (99.9%), pesticides (below lab detectable limit) See everything removed here) |
Product Dimensions | 2.25 x 2.25 x 9.75 inches |
Composition | Carbon-containing high-grade coconut shell blended with a proprietary blend of 5 other media. |
Certifications | State and EPA accredited laboratories tested the Black Berkey Filters to exceed NSF/ANSI Standard 531 |
Lifespan | 3,000 gallons per filter. (6,000 gallons per set of 2) |
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
- Black-Berkey_Perfluorinated-Chemical-Removal-Test-Report.pdf
- Berkey Purification Element Chem-Red Test-9-15 Rev.pdf
- BF2 Gross Alpha Radiological Test Results-1.pdf
- BF2 Gross Beta Radiological Test Results.pdf
- BF2 Inorganic Test Results.pdf
- BF2 Microbiological Testing.pdf
- BF2 Organic Test Results.pdf
- BF2 Uranium Radiological Test Results.pdf
How To Information
Imperial Berkey FAQs
Compare the Berkey
Water Filter systems
1Price varies with the number of Filters | 2Flow rate based on optimal water conditions and emergency use with the upper container being kept full. The flow rate may vary by user.