British Berkefeld 7″ Ultra Fluoride Ceramic Water Filter
The British Berkefeld 7-inch Ultra Fluoride ceramic filter delivers powerful multi-stage filtration designed specifically for gravity water filter systems.
Each filter features a micro-porous ceramic outer shell that physically blocks bacteria, cysts, and sediment. Inside the filter, activated carbon and specialized fluoride-reduction media help reduce chemicals, heavy metals, and other contaminants while improving the taste and clarity of drinking water.
Ultra Fluoride filters are certified by NSF International to four drinking water standards, verifying their performance through rigorous third-party testing.
Unlike many gravity filtration systems that require separate fluoride add-on filters, this all-in-one design integrates multiple filtration stages into a single cartridge for simpler installation and maintenance.
These filters are ideal for home kitchens, emergency preparedness, off-grid living, camping, and everyday drinking water filtration.
NSF Certified Filtration
British Berkefeld Ultra Fluoride filters are certified by NSF International to four drinking water standards, confirming their performance for contaminant reduction and material safety.
✔ NSF/ANSI Standard 42 – Reduction of chlorine, taste, and odor
✔ NSF/ANSI Standard 53 – Certified for health effects contaminant reduction
✔ NSF/ANSI Standard 372 – Certified lead-free materials
✔ NSF/ANSI Standard 401 – Reduction of emerging contaminants such as lead Microplastics
These certifications confirm that the filters meet strict third-party testing standards for drinking water safety and filtration performance.
Key Benefits
✔ Reduces fluoride and heavy metals including lead
✔ Removes bacteria, cysts, and sediment
✔ Reduces chlorine, microplastics, and organic chemicals
✔ Improves taste and odor of drinking water
✔ Gravity powered – no electricity required
✔ Cleanable ceramic shell helps extend filter life
✔ Retains beneficial minerals naturally found in water
Contaminant Reduction
| Contaminant | Reduction |
|---|---|
| Fluoride | ✔ |
| Lead & Heavy Metals | ✔ |
| Bacteria | ✔ |
| Cysts | ✔ |
| Chlorine | ✔ |
| Microplastics | ✔ |
| Sediment & Turbidity | ✔ |
| Organic Chemicals | ✔ |
Specifications
| Feature | Details |
|---|---|
| Manufacturer Model | W9120133 |
| Filter Type | Ceramic Gravity Filter |
| Filter Length | 7 inches |
| Filter Capacity | 400 gallons per filter |
| Total Capacity | 800 gallons (2 filters) |
| Replacement Interval | Replace every 6–12 months depending on water quality |
| Weight | 1.6 pounds |
| Product Dimensions | 3 × 3 × 7 inches |
| Color | White |
| Country of Origin | Made in Britain |
| Package | 2 Filters |
| Installation | Upper chamber of gravity systems |
Includes wing nuts and washers for installation.
Designed for British Berkefeld Gravity Systems
The Ultra Fluoride ceramic filter is specifically designed for British Berkefeld gravity water filtration systems.
Unlike some gravity systems that require a main filter and a separate fluoride filter, this all-in-one cartridge performs both functions in a single filter.
This simplifies installation while still providing powerful contaminant reduction.
System Compatibility
The number of filters used depends on the gravity system size.
| System | Number of Filters |
|---|---|
| Baron Berkefeld | Not compatible — outdoor systems typically do not use fluoride filtration. |
| Duchess Berkefeld | 2 Filters |
| Duke Berkefeld | 2-4 Filters |
| Prince Berkefeld | 2-4 Filters |
| King Berkefeld | 2-8 Filters |
| Borosilicate Glass System | 2-4 Filters |
| Stoneware System | 2-4 Filters |
Using multiple filters can increase filtration speed and overall system capacity.
Gravity Water Filter Comparison
Many gravity filtration systems appear similar but use different filtration technologies.
| System | Filter Technology | Fluoride Reduction | Bacteria Filtration | Notes |
|---|---|---|---|---|
| British Berkefeld / Doulton | Ceramic + Carbon | ✔ | ✔ | Traditional ceramic filtration used worldwide |
| Berkey | Carbon block | Optional add-on | Limited | Popular stainless steel gravity system |
| Alexapure | Carbon composite | ✔ | Limited | Strong chemical reduction |
| Culligan Gravity Filters | Carbon | Some models | Limited | Large household brand |
Ceramic filtration remains popular because the micro-porous ceramic shell physically blocks bacteria and sediment, while activated carbon reduces chemicals and improves taste.
How Gravity Water Filters Work
Gravity water filters use two chambers.
1️⃣ Water is poured into the upper chamber
2️⃣ Gravity pulls water through the filter cartridges
3️⃣ Clean water collects in the lower chamber
Because gravity systems require no electricity, plumbing, or pressure, they are ideal for everyday drinking water, emergency preparedness, and off-grid living.
What’s Included
• 2 × British Berkefeld 7″ Ultra Fluoride Ceramic Filters
• Installation wing nuts and washers
✔ Ideal for gravity water filtration systems that require powerful contaminant reduction with fluoride filtration built directly into the filter cartridge.
Patricia F. –
X
Patricia Strobele-Goehrig –
Good
Eve Tatum –
This is my first time using this flouride removal/water filter! It seems to work fine so far! I’m actually just finishing the conversion and love that I didn’t have to prime the filter prior to using! The threaded mount was somewhat tight to fit into water container, but it takes patience! It’s dripping constantly and so far I’m very pleased with the results!
Thank for a supportive solution!
Rick Mousley –
Best filters I’ve ever used!
Lee –
Purchased our second round of Ceramic Ultra Fluoride Water filters. These are great filters and you can smell and taste the difference in the water quality. After using these filters for my family’s drinking and cooking needs, we all have seen an improvement with our health and energy levels (especially colds during the winter months). The tap water that’s poured on the top of the gravity fed system smells like pool water now that we’ve transitioned to clean, filtered water. Crazy to believe the tap water in our area is so heavily contaminated with chemicals! This water system and filters were a game changer for us. Shipping is always very fast too! Thank you!
Kristie K. –
Easy to install, quick to use after first filter, works for months for our family of 4. Such a blessing to have an easy alternative in our system that filters are no longer available for (and were hard to use)
Leah –
We used these filters to replace filters of a different brand. We found these to be fully compatible and easy to install. Plus the water tastes much better!
Grace S. –
Amazing filter, easy installation
Mary Schonour –
Just received my first set of these filters and they arrived quickly! So far, they fit great with my ProOne system. I used to love my ProOne filters, until my recent order of filters left my water tasting like mud. After installing my new Berkefeld filters, my water tastes great once again. The first batch filtered very slowly but as their customer service stated, it will get faster after that first time.
MARK Coleman –
I have no comments at this time, I haven’t received the product yet.
Richard L. –
Fast service and shipping. Water tastes great. Would recommend highly.
Shelia G. –
Always feel good about using British Berkefeld Fluoride Water Filters. Totally satisfied and so glad that I don’t have the hassle of priming that needs to be done with the black filters along with extra filters that took care of the fluoride.
Hetal –
Lot smaller than old regular black filters
Cade Fischer –
great product, can tell the difference before and after forsure
Carrie –
Good product, bad customer service, it was impossible to talk to someone before ordering to make sure I was buying the right product for my needs.
Nathan Katz –
Quick delivery
David N. –
Have yet to install the flters. However my kids use these and love them. As soon as the filters I have are done we’ll install these.
Ashley Jaycox –
Very well packaged. Instructions could note as to where exactly the washer should be placed. We have softened water, and its a bit inconvenient for us to put water that isn’t softened in our gravity fill. These are quite expensive filters, but I will say the water tastes great, and it’s worth having good quality drinking water, and the company stands by their product.
Lori Bekers –
Great product, works beautifully, am a return customer. Started off with Berkey and am way happier with the Berkefeld
Anonymous –
Best filters available that do everything I need them to do for my family. I love that these products are properly certified and the test results are made available in their product sheets.
Anonymous –
Fast delivery.
Anonymous –
Excellent service.
Anonymous –
These were easy to order, work great, and arrived quickly.
Louise Fritzel –
Water tastes great, easy to install
Anna Sarro –
I love your filters. I bought them for my daughter and son‘s Berkey water system. They have the travel size so it works perfectly. I have the size up and it has four holes. I’m wondering if it’s possible to send me two plugs. last time I had the black filters and separate fluoride filters so all four holes were covered up. I hope to hear from you, Anna Sarro.
Tatiana Walker –
Love this system and taste of water
Priscilla –
Thank you for this product!
I was very confused with the slow process at first. I looked at the Facebook page and read some conversations and then asked my direct question pertaining to the filters I purchased. Ryan Hejlik promptly let me know the filters aren’t primed and told me how to go through the process of opening up the ceramic pores.
I now am using my Berkey with your filters. Working great. Thank you!!! Priscilla
Jennifer –
Great filters overall.However one of my new filters was missing a washer. I just took the old washer from my old filter and used that.
Bernard –
The service that I received from your company was excellent. It was fast and handled in a very professional manner.
Thank you
David –
Very pleased with My experience.
Alyssa –
Easy ordering process. We won’t drink any other water!
Anonymous –
They work well and the water tastes great
Marilynn M. –
Great service! Great product!
Chris Maiden –
Arrived very fast! These are the World’s best water filters, removing everything that contaminates our bodies. I have kidney disease, so pristine, clean water is a must for me. My dogs and cats also drink this filtered water, and they can tell the difference!
Loren L. –
Love these
Barbara H. –
Shipping is quick and without issue. Good thing my neighbor told me about how slow they work on the first run or I may have wondered about them. They do seem to run much slower than the Berkey ones but then they are filtering more toxins out.
Anonymous –
Great filters
Susan Nielsen –
Excellent products, customer service representitive, Buddy was incredibly helpful and knowledgeable. Cutos to Buddy 😀
Avian –
Your company & the filters I buy always great!!! Thank You!!
Anonymous –
I was so excited to find an all in one filter! As soon as it arrived I but them to work! Best decision ever! Water tastes amazing! Thank you for this amazing clean product!
Anonymous –
Superb! Quick shipping and easy to instal for a first timer. Water is clear and clean! Thank you!
Robert baker –
very happy with the filters, glad I found this company
John N. –
Easy to replace these filters and autoship is great
J P. –
Easy to install/uninstall. Good clean water flows through in a timely fashion. It definitely does a good job filtering out unwanteds from the water. I feel confident in the quality of water we are drinking.
Robert Schmeltzer –
None
Frederick Grimes –
I have just received a re-order of 2 Ultra fluoride water filters. The original ones I have had proved to be outstanding, great, clear, thirst-quenching water, like it had just come from a fresh spring. Thank you British Berkefeld, for your fast delivery, and safely packed filters.
Judy –
Water filters very quickly with these new filters.
Marie Mitchem –
Arrived in good condition, and delivery time was quick.
J P. –
Provides clean fresh water and removes the fluoride. I really appreciate that this sits in the top and NOT down in my clean water like the other brand does.
Michelle R Sparks –
Very positive experience.