Berkey Big Berkey
- Gravity
- Point of use
- City water
- Well water
- Complete system
- Listed
$367.00as of 2026-08-30
Secondary sourceVerified 2026-08-30Retailer listing
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Our verdict on the Berkey Big Berkey
At $367 as of 2026-08-30, the Big Berkey is a 2.25-gallon countertop gravity system for 1–4 people; the live NSF/ANSI 42 listing applies only when the system uses Phoenix Gravity New Millennium Edition elements, while the current standard package uses Black Berkey elements.[1][2][3][4]
Best for
- Households of 1–4 that want a countertop gravity system requiring no electricity.
Not for
- Buyers who need fluoride or arsenic reduction in the standard package, because PF-2 elements are optional.
- Homes that would fill it with softened water or salt water, which the manual says can clog the elements and void the warranty.
- California or Iowa residents, because the manufacturer says this model is not available for sale in those states.
Secondary sourceVerified 2026-08-30Brand officialRetailer listingNSF listingManufacturer datasheet
Certification check: Berkey Big Berkey
Listed by NSF under NSF/ANSI 42, checked in the certifier directories as of 2026-08-30.
- NSF
- NSF/ANSI 42
| Directory | Result | Listing |
|---|---|---|
| NSF | Listing found (checked 2026-08-30) | View listing |
| IAPMO R&T | No listing found (checked 2026-08-30) | View listing |
| WQA | No listing found (checked 2026-08-30) | View listing |
Claimed vs. certified: Berkey Big Berkey
| Contaminant | Status | Third-party listing | What the brand says |
|---|---|---|---|
| Cadmium, chromium, copper, lead, mercury, aluminum and other heavy metals | Marketed only | No entry |
|
| Herbicides, pesticides, organic solvents, VOCs, detergents, cloudiness, silt, sediment, sedimentary minerals, foul tastes and odors | Marketed only | No entry |
|
| Chlorine | Certified only |
| No entry |
| Taste and odor | Certified only |
| No entry |
What the Berkey Big Berkey does not do
The standard two-Black-Berkey-element package does not include the optional PF-2 fluoride and arsenic reduction elements.
The standard two-Black-Berkey-element package does not include the optional PF-2 fluoride and arsenic reduction elements.[1]
Primary sourceVerified 2026-08-30Brand official
Do not use softened water or salt water; the manual says either can clog the filter pores and void the warranty.[1]
Primary sourceVerified 2026-08-30Manufacturer datasheet
The manufacturer says the Big Berkey is not available for sale to residents of California and Iowa.[1]
Primary sourceVerified 2026-08-30Brand official
Fit and sizing: Berkey Big Berkey
The Berkey Big Berkey is a gravity unit installed at the point of use, for city water and well water.
| Form factor | Gravity |
|---|---|
| Installed at | Point of use (one fixture) |
| Water source | City water and Well water |
| Household size | 1–4 people[1] Primary sourceVerified 2026-08-30Brand official |
| Dimensions | 19.25 in H × 8.5 in W × 8.5 in D[1] Primary sourceVerified 2026-08-30Brand official |
| Needs electricity | No[1] Secondary sourceVerified 2026-08-30Retailer listing |
What the Berkey Big Berkey really costs
The Berkey Big Berkey costs $367.00 as of 2026-08-30.
Replacement schedule
| Element | Replace | Cost per year |
|---|---|---|
| Black Berkey Elements (set of 2) | every 6,000 gallons | Not recorded |
Secondary sourceVerified 2026-08-30Retailer listing
Ten-year cost of ownership
| Purchase price (as of 2026-08-30) | $367.00 |
|---|---|
| Replacement elements, 10 × $0.00/year | $0.00 |
| Sum of the lines above (as of 2026-08-30) | $367.00 |
Warranty: One-year limited warranty on stainless chambers; Black Berkey elements have a two-year limited prorated warranty, and the included spigot and separately sold accessories have six months of coverage. (1 years)[1]
Primary sourceVerified 2026-08-30Manufacturer datasheet
Money-back guarantee: The direct-program retailer accepts eligible returns within 30 days of receipt for a refund, with a 5% restocking fee; used filters are not eligible. (30 days)[1]
Secondary sourceVerified 2026-08-30Retailer listing
Installing the Berkey Big Berkey
Tools required
- standard screwdriver
Primary sourceVerified 2026-08-30Manufacturer datasheet
Manufacturer documentation
- Install manual: https://support.berkeywater.com/wp-content/uploads/2025/02/Berkey-Stainless-Steel-System-Instructions-EN-V6-2025-8x11-1.pdf (accessed 2026-08-30)
Ongoing maintenance
- Clean the lower chamber and spigot as needed. — every 1 months
- Clean the Black Berkey elements every 2 to 3 months or as needed.
Primary sourceVerified 2026-08-30Manufacturer datasheet
Track record: Berkey Big Berkey
Amazon shows 4.5 out of 5 from 4,210 reviews as of 2026-08-30.
| Source | Rating | Reviews | As of |
|---|---|---|---|
| Amazon | 4.5 out of 5 | 4,210 | 2026-08-30 |
Recalls and litigation
LitigationBloomberg Law reported that the Fifth Circuit affirmed dismissal for lack of standing in New Millennium Concepts' challenge to EPA pesticide-registration requirements for Berkey products. (2024-08-09)
https://news.bloomberglaw.com/environment-and-energy/berkey-filters-maker-loses-appeal-over-pesticide-registration
Secondary sourceVerified 2026-08-30Tier-1 journalism
The Berkey Big Berkey against its family and its rivals
Sources and data report: Berkey Big Berkey
Every figure above is taken from the highest-trust source that carries it and re-derived from that source by a separate check. How we verify product data.
What we could not establish, and why
| Field | Why it is blank |
|---|---|
| mechanism.treatmentMethods | The manufacturer describes proprietary microfiltration, adsorption, and a general ion-exchange process, but none maps without approximation to the schema’s permitted treatment-method slugs; no stage train was recorded. |
| fit.bathroomsServed | The manufacturer and exact-model retailer describe people served, not bathrooms served; both product pages were checked. |
| fit.serviceFlowGpm | The manufacturer publishes an intermittent gravity flow of up to 3.5 gallons per hour with two elements, not the continuous gallons-per-minute service flow this field represents. |
| fit.roOutputGpd | The product is a gravity filter rather than a reverse-osmosis system, so the manufacturer publishes no RO membrane output. |
| fit.roTankCapacity | The product is a gravity filter rather than a reverse-osmosis system and has no RO pressure tank specification. |
| fit.pressureRange | The exact-model listing says water pressure is not required; the manual and product pages publish no numerical operating pressure range. |
| fit.temperatureRange | The manual says to use cold water and avoid heat but gives no numerical operating-temperature range. |
| fit.connectionSize | The countertop gravity system is not plumbed into a water line, and the manual publishes no connection-size specification. |
| fit.requiresDrain | The manual shows countertop assembly without a drain connection, but it does not explicitly state a drain requirement; the value was not inferred from the drawings. |
| cost.msrp | The exact-model direct and Amazon listings both showed a current $367 selling price, but neither established a manufacturer suggested retail price. |
| cost.install | The manual provides consumer assembly instructions and lists one tool, but it does not label the installation class or publish a professional-install quote. |
| cost.tenYearTotalUsd | A ten-year total cannot be calculated honestly from a gallon-based 6,000-gallon element capacity without a cited household water-use rate and a current replacement-element price for the Black-element configuration. |
| cost.wasteRatio | This is not a reverse-osmosis system; the product page and manual publish no reject-water ratio. |
| install.difficulty | The manual gives assembly steps but no easy, moderate, or hard difficulty rating, so no qualitative rating was inferred. |
| install.estimatedHours | The current manual was opened and gives no completion-time estimate. |
| install.video | The exact-model page links an older product video, but its displayed dimensions differ from the current manufacturer page; it was not used as a current installation source. |
| seo.verification | The verification loop has not run; this field is reserved for its stamp. |
Every source behind this page
- Brand officialaccessed: 2026-08-30https://www.berkeywater.com/big-berkey-system-2-25-gal/
- The manufacturer maintains an exact-model Big Berkey product page with current system specifications.
- Big Berkey capacity, household fit, current Black Berkey element configuration, optional PF-2 elements, and California/Iowa sales restriction.
- The system comes standard with two Black Berkey elements, while PF-2 fluoride and arsenic reduction elements are optional.
- Exact-model sales restriction for California and Iowa residents.
- Manufacturer states the system easily serves 1–4 people for normal everyday use.
- Manufacturer dimensions are 19.25 inches high and 8.5 inches in diameter; the cylindrical diameter is recorded as both width and depth.
- The current manufacturer product page says Big Berkey comes standard with two Black Berkey elements.
- Retailer listingaccessed: 2026-08-30https://www.bigberkeywaterfilters.com/products/big-berkey-water-filter
- $367 current package price and no-electricity claim.
- The exact-model listing states no electricity or water pressure is needed.
- The exact-model direct-program landing page displayed a $367 price.
- The exact-model listing gives an approximate 6,000-gallon capacity for the included set of two Black Berkey elements.
- NSF listingaccessed: 2026-08-30https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=Berkey&hdModlStd=ModlStd
- NSF/ANSI 42 listing scope for Big Berkey[2] featuring Phoenix Gravity New Millennium Edition filter elements.
- Listing footnotes identify Big Berkey[2] as featuring Phoenix Gravity New Millennium Edition elements and identify the replacement element as PGF9-2.
- Manufacturer datasheetaccessed: 2026-08-30https://support.berkeywater.com/wp-content/uploads/2025/02/Berkey-Stainless-Steel-System-Instructions-EN-V6-2025-8x11-1.pdf
- Warning against softened water and salt water.
- The manual warns that softened water or salt water can clog the filter pores and void the warranty.
- Manufacturer warranty terms for stainless chambers, Black Berkey elements, spigot, and accessories.
- The installation manual lists a standard screwdriver as the required tool.
- Current English assembly, operation, cleaning, storage, and warranty instructions for Berkey stainless steel systems.
- Manual recommends maintenance every 30 days as needed and element cleaning every 2 to 3 months or as needed.
- Retailer listingaccessed: 2026-08-30https://www.bigberkeywaterfilters.com/pages/policy
- Thirty-day return window, 5% restocking fee, and used-filter exclusion.
- Tier-1 journalismaccessed: 2026-08-30https://news.bloomberglaw.com/environment-and-energy/berkey-filters-maker-loses-appeal-over-pesticide-registration
- The Fifth Circuit affirmed dismissal for lack of standing in the manufacturer's challenge to EPA pesticide-registration requirements, reported August 9, 2024.
Cite this page
TapWaterData Editorial. "Big Berkey Water Filter Review: Specs & Cert Check." TapWaterData, verified 2026-08-30. https://www.tapwaterdata.com/filters/brand/berkey/big
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