Offline mode
BerkeyW91201330https://www.bigberkeywaterfilters.com/media/catalog/product/cache/47e803ce5f7e600ae15a4e0bc13ba8f4/b/r/british_berkefeld_7-inch-ultra-sterasyl_fluoride.jpg

Berkey Replacement Filters

Two 7″ Ceramic Ultra All in One Fluoride Water Filter

224 people have added this to their cart recently!

(10 reviews)

  • Designed for removal – the same powerful filtration as the Ultra Sterasyl model, with added fluoride reduction. Independently tested to NSF/ANSI 42, 53, CAN 372, and CAN 401 standards
  • Equivalent to Black Berkey / PF-2 combo – functions as an alternative to using Black Berkey and PF-2 filters
  • Long-lasting & re-cleanable – each set of two filters lasts up to 800 gallons or approximately 6 months to 1 year, with the ability to clean and reuse
  • Do not work with PF-2 filters or as a lower chamber supplement for Black Berkeys

Order today and enjoy the convenience of free express shipping.

30-day return policy

Quantity

Free Express Shipping

30 Day Return

Two 7″ Ceramic Ultra All in One Fluoride Water Filter Overview

BLACK BERKEYS CURRENTLY UNAVAILABLE

The Black Berkeys are currently unavailable as we await resolution in our lawsuit against the EPA. We're working hard to resolve this issue and will provide updates as soon as we can.

In the meantime, we recommend these highly effective ceramic filter options:

  • Ultra Sterasyl Ceramic Filters: ideal if fluoride removal is not required.
  • All-in-One Ultra Fluoride Filters: offers the same filtration quality as the Ultra Sterasyl but includes fluoride removal capabilities (works as a replacement for Black Berkeys and PF-2 filters combo).

They are a brand new and improved version of the original Super Sterasyl Ceramic filters that Berkey used to offer.

Learn more about the difference between Black Berkeys and ceramic filters.

All in One Ultra Ceramic Fluoride Filters – Great Replacement Water Filters for Your Berkey Filtration System

Concerned about contaminants in your drinking water? These impurities can pose serious risks to your health and well-being over time. But what to do as a proud owner of a Berkey system when Black Berkeys are out of stock?

To address this problem for you, we introduce the 7″ Ceramic Ultra All in One Fluoride Water Filters. They work similarly to the standard Ultra Sterasyl Ceramic filters, but additionally provide fluoride removal, working as a replacement for Black Berkey and PF-2 filters combo

They can be used with Berkey gravity-fed water filter systems and provide a simple and effective solution to safeguard you and your family. Order now and enjoy cleaner, safer water!

Tested and Proven Protection Against Water Contaminants – And They Remove Fluoride, Too

All-in-One Ultra Ceramic Fluoride Filters were rigorously tested and certified to NSF/ANSI 42, 53, 372, 401 Standards. They feature a multi-stage filtration system, combining a microfilter ceramic outer, granular activated carbon, and heavy metal removal media. You can expect them to:

  • Reduce fluoride > 99%*
  • Reduce organic chemicals > 99% - Pesticides, herbicides, organic solvents, SOCs, VOCs, trihalomethanes
  • Reduce chlorine > 99%
  • Remove pathogenic organism > 99.99% of E. Coli, Cholera, Shigella, Typhoid, Klebsiella, Terigena, Cryptosporidium Cysts, Giardia Cysts
  • Reduce turbidity, sediment and particulate @ 0.9 micron > 99.99%, @ 0.5 – 0.8 micron > 99.9%, @ 0.2 – 0.3 micron > 98% (based on tests by Spectrum Laboratories, Minneapolis, MN)

* One Ultra Fluoride gravity filter element has been tested to remove up to 99% of Fluoride up to 1,950 ppm – E.g. if your water contains 1ppm of Fluoride these filters will effectively remove it for 1,950 Litres before needing to be replaced.

USA water companies can add a maximum of 0.7-1.7ppm (0.7-1.7 milligram per litre (mg/L)) of Fluoride to the water stipulated by the U.S. Food and Drug Administration (FDA)” Since August 2023 the U.S. Food and Drug Administration (FDA) has stipulated that the total amount of fluoride (added plus naturally occurring) cannot exceed 0.7 mg/L.

Looking for more details? Here you can read laboratory test results yourself:

Testing Results for Ultra Sterasyl Ceramic Filters
TestDocument
PFAS (PFOA PFOS) Testing ResultsQFT Laboratory, LLC. Report # 22-131-PFOAS
LEAD Testing ResultsEnvirotek Laboratories, Inc. Report # 16-374-2-Pb-HPH
HEAVY METALS Testing ResultsEnvirotek Laboratories, Inc. Report # 16-374-Metals HpH
PHARMACEUTICAL Testing ResultsQFT LABORATORY, LLC Report #21-155-2-Pharma
PESTICIDES Testing ResultsENVIROTEK LABORATORIES, INC. Report #21-155-2-Pesticides
CHEMICAL Testing Results QFT LABORATORY, LLC. Report #19-119

The Best Direct Replacement for Black Berkey Filters

Designed for the upper chamber of Berkey Water Filter Systems, they serve as a great replacement water filters when Black Berkeys are unavailable. 

They work with Berkey systems of all sizes, from the mobile Go Berkey up to the largest countertop Crown Berkey, with difference only in the number of filters needed for the optimal flow rate. 

Ceramic filters are upper chamber elements. They do not work simultaneously with upper chamber Black Berkey purifying elements, nor do they work with the PF-2 fluoride filters. Only one technology is designed to operate in the upper chamber at a time.

Are they as good as Black Berkey filters? Of course not. But they are pretty close and can be considered the next best thing. Here's the comparison between the Black Berkeys and Ultra Sterasyl filters:

Table with comparison of Black Berkey Filters and ceramic filters
ComparisonBlack Berkey FiltersCeramic Ultra All in One Fluoride Water Filter
Fluoride removalUp to 99.75% reduction in fluoride under optimum pH conditions, if used in combination with PF-2 filtersOver 99% removal rate
Heavy Metals removal
(Lead, Mercury, Chromium, etc.)
Removes or reduces heavy metals by 99.9% and greaterReduces lead, mercury, and other metals (testing shows >99% lead reduction)
Chlorine & Taste/Odor removalChlorine removed below detectable limits
Noticeable improvement in taste and odor
Reduces chlorine by >99%
Improves taste and odor thanks to granular activated carbon
Organic Chemicals removal
(Pesticides, Herbicides, VOCs, SOCs, PFAS, Trihalomethanes)
VOCs reduced to below lab detectable limits
Strong overall chemical reduction
Over 99% removal rate
Pharmaceuticals removalReduces various drugs (ibuprofen, naproxen, etc.) by 99.5%+Generally over 90% removal rate, reaching over 98% with most pharmaceuticals
Sediment & Turbidity removalRemoved below detectable limits@ 0.9 micron > 99.99%
@ 0.5 – 0.8 micron >99.9%
@ 0.2 – 0.3 micron > 98%
LifespanTypically lasts ~3,000 gallons per element (depending on water quality)Each 7" filter lasts ~800 gallons (6 mos - 1 year)

Durability, Cost-Effectiveness, and Ease of Use

Each filter is re-cleanable, allowing for extended use while minimizing waste. The expected lifespan per set of two filters is approximately 800 gallons or 6 months to 1 year, depending on water quality and usage. The outer ceramic shell is designed for easy scrubbing, helping to restore optimal flow when buildup occurs.

Installation is simple and can be done without technical knowledge. They are installed in the upper chamber of your Berkey system (but remember that, despite this, they don’t work with PF-2 arsenic and fluoride filters added in the lower chamber, nor should you use them in combination with Black Berkeys or standard Ultra Sterasyl filters in the upper chamber).

Cleaning is intuitive, and filter maintenance takes just minutes. 

Each element has a unique domed ceiling assuring that leakage cannot occur, which may happen with capped filters.

Priming is not required.

Pro tip: The filter needs to be kept in a place where the temperature is between 40 – 100 F for proper filtration.

Flow Rate for Different Filter Configurations

Flow rate may vary depending on the quality of the incoming water supply. The first up to 10 cycles may be slow, but this is normal. Once the internal carbon media is fully broken in, the flow rate will improve.

Number of Filter ElementsFlow Rate
1 filter element0.29 gal/hour (1.1 L)
2 filter elements0.58 gal/hour (2.2 L)
3 filters elements0.87 gal/hour (3.3 L)
4 filter elements1.16 gal/hour (4.4 L)

Important Notes & Care Instructions

  • First-time use: Initial filtration will be slower but improves with use.
  • Maintenance: Clean the outer ceramic shell with a non-abrasive kitchen pad under running water or in a bowl. Do not submerge the open-ended plastic mount to avoid contamination.
  • Installation: Works only in the upper chamber of Berkey systems in place of Black Berkeys. Cannot be used simultaneously with Ultra Sterasyl filters.
  • Eco-friendliness: Carbon filter piece is biodegradable; plastic parts are recyclable.

Shipping & Warranty

  • Free express shipping on orders over $99 in the contiguous 48 states (excluding California & Iowa).
  • 6-month manufacturer warranty against defects in materials and workmanship. The manufacturer will replace or repair any product that it deems is not properly functioning during the stated warranty period.

Two 7″ Ceramic Ultra All in One Fluoride Water Filter FAQ

Can these filters remove fluoride?

Yes, they are specifically designed to remove fluoride with an efficiency of over 99%.

Can I use these filters in any Berkey system?
These filters are designed for upper chambers and fit most Berkey systems, but they do not work together with PF-2 fluoride filters nor can be used for the lower chamber with Black Berkeys.

Are these as good as Black Berkey filters?

While the All-in-One Ultra Ceramic Fluoride Filters provide excellent filtration, Black Berkeys offer a longer lifespan. However, these filters are the best alternative when Black Berkeys are unavailable.

Customer reviews

4.9010 reviews

NewestWith PicturesHighest RatingMost helpful commentsLeast helpful comments
  • Joan L.

    Fri Apr 18 2025

    Unbelievable!!

    I don't use Instagram but Happy to post about your fantastic helpfulness. Generally we do not like to drink Brita or Zero filtered water but we've been forcing ourselves to be good and drink for health sake. Now, having rcvd your wonderful filters we cannot stop drinking super toxin free filters. Thank you sooo much. We hope to keep a store supply ahead to keep us safe drinking we'll for many years to come.

    Ease of Installation:

    Perfectly ez

    Comment thumbnail photo

    Was This Review Helpful?

    Fri Apr 18 2025

  • Frances K.

    Sat Jan 11 2025

    Pure, clear, safe water!

    I have owned a Big Berkey water filtration system for about 8 years now. This is my first time using the ceramic filters. The taste is so pure and clean. The water makes my sourdough bread grow in the jar and rise in the oven in beautiful way. I have never have had such success with my sourdough starter or baked bread as I have with these filters. When I washed my hair with the filtered water it was full of volume and bounce. The water is unmatched and incredible!

    Age:

    45

    Ease of Installation:

    Much simpler and easier than with the black filters. I love these.

    Comment thumbnail photo
    Comment thumbnail photo
    Comment thumbnail photo
    Comment thumbnail photo
    Comment thumbnail photo

    Was This Review Helpful?

    Sat Jan 11 2025

  • Kathryn D.

    Mon Feb 17 2025

    NEW and convenient!!!

    Looking forward to using these convenient new Berkey filters!!!

    Age:

    68

    Ease of Installation:

    Much easier than using the black and white filter!!!

    Was This Review Helpful?

    Mon Feb 17 2025

  • Diane A.

    Thu Feb 06 2025

    Eas to install

    Eas to install

    Was This Review Helpful?

    Thu Feb 06 2025

  • steve b.

    Sat Jan 18 2025

    Glad I got these filters

    I really like having the flouride filter in the ceramic filter

    Was This Review Helpful?

    Sat Jan 18 2025

  • MichelleB

    Sun Jan 12 2025

    Expensive, takes a while

    We used the black filters up until now. We were overdue for a filter change and reluctantly got theses. How fortunate we are to purchase such expensive filters to get the best water! We followed the directions but the water did not start tasting good until the 6th run through. These bad boys do not last long 6mos to a year. Given the cost, I just do not see how it is sustainable. But the water is now delicious!

    Age:

    46

    Ease of Installation:

    Easy, but one rubber washer was missing from one of the filters. We did not want to go through the process of returning or asking for a replacement and so we are using it as is.

    Was This Review Helpful?

    Sun Jan 12 2025

  • David T.

    Sat Jan 11 2025

    First time on new filters.

    This is the first time switching from the original “black” filters with the fluoride attachments, and I have to say, so far, I am a fan. The setup was much easier with no need to prime them, and not having the separate fluoride attachments sitting in the filtered water tank is also great. They are more expensive, as they have a shorter rated capacity and I’ll need to replace them 2-3x a year rather than once, but all in all, I am happy with the trade off.

    Age:

    54

    Ease of Installation:

    Extremely simple.

    Was This Review Helpful?

    Sat Jan 11 2025

  • Trey H.

    Wed Jan 01 2025

    👍

    Works great

    Age:

    42

    Ease of Installation:

    Super easy

    Was This Review Helpful?

    Wed Jan 01 2025

  • Robbee F.

    Wed Dec 11 2024

    Love My Berkey

    Love the taste of the Berkey water, I drink more water, because it tastes good! The white ceramic Filters are great, easy to install and maintain. It was a great investment.

    Ease of Installation:

    Simple 😁

    Was This Review Helpful?

    Wed Dec 11 2024

  • Charlie

    Tue Oct 29 2024

    Happy with these

    I've been waiting for the black berkeys, but seems it might be a little longer. Problem is my town has high levels of fluoride, so happy these are available now. Super easy to set up and hopefully by the time they need replacing the black berkeys will be available again.

    Age:

    52

    Ease of Installation:

    easy

    Was This Review Helpful?

    Tue Oct 29 2024

Trust

5003
Certified reviews

Payment methods

Security