Duke Berkefeld Gravity Water Filter System (Ultra Fluoride Filters)
The Duke Berkefeld is a popular mid-size gravity water filter that offers an excellent balance between capacity and countertop space. This system is ideal for households of 3–4 people who want reliable everyday water filtration without the need for electricity or complicated installation.
With a storage capacity of approximately 2.25 gallons (8.5 liters), the Duke Berkefeld provides a steady supply of clean drinking water for everyday needs such as drinking, cooking, and filling reusable bottles.
This configuration includes two British Berkefeld Ultra Fluoride ceramic filters, which combine a micro-porous ceramic outer shell with activated carbon and specialized filtration media. This advanced multi-stage design helps reduce bacteria, chlorine, sediment, fluoride, arsenic, and heavy metals, while improving the taste and clarity of drinking water.
The system is constructed from highly polished 304 food-grade stainless steel, giving it a durable and classic design that fits comfortably on most kitchen counters. When fully assembled, the Duke Berkefeld stands approximately 19.25 inches tall with an 8.5-inch diameter, while the chambers nest together for convenient storage or transport.
If you are looking for a gravity water filtration system that combines powerful ceramic filtration with fluoride reduction, the Duke Berkefeld with Ultra Fluoride filters provides a reliable and convenient everyday solution.
Advanced Ceramic Filtration Technology
✔ Multi-Stage Ceramic Filtration
The Ultra Fluoride filters combine ceramic microfiltration, activated carbon, and specialized media designed to reduce additional contaminants.
✔ Fluoride & Arsenic Reduction
Specialized filtration media inside the filter helps reduce fluoride, arsenic, and heavy metals commonly found in some water supplies.
✔ Simple Gravity Filtration
No electricity or plumbing required. Just fill the upper chamber and let gravity filter your water naturally.
Why Customers Choose the Duke Berkefeld
✔ Ideal for Small Families
Designed for households of 3–4 people, providing enough filtered water for everyday use.
✔ All-in-One Filtration System
Reduces bacteria, chlorine, sediment, fluoride, arsenic, and heavy metals in one ceramic filter.
✔ Improves Taste and Odor
Activated carbon helps reduce chlorine and organic compounds that affect taste.
✔ Blocks Bacteria and Sediment
Micro-porous ceramic filtration physically blocks bacteria and captures fine particles.
✔ Long-Lasting Filters
Each pair of Ultra Fluoride filters can last up to 800 gallons, typically around 6 months of regular use.
✔ No Electricity Required
Gravity filtration works anywhere — perfect for everyday use or emergency preparedness.
What the British Berkefeld Ultra Fluoride Filter Helps Reduce
British Berkefeld Ultra Fluoride filters combine ceramic microfiltration, activated carbon, and specialized media to address a wider range of contaminants.
| Contaminant | Reduction Method |
|---|---|
| Bacteria | Ceramic microfiltration barrier |
| Chlorine | Activated carbon adsorption |
| Sediment & Turbidity | Ceramic filtration |
| Fluoride | Specialized filtration media |
| Arsenic | Specialized filtration media |
| Lead & Heavy Metals | Carbon and filtration media |
| Microplastics | Physical filtration |
| Organic Chemicals | Activated carbon |
| Taste & Odor | Carbon filtration |
Water Contaminants This System Helps Address
Many municipal and well water sources can contain contaminants that affect water quality, taste, and safety. The Ultra Fluoride ceramic filters are designed to address a broader range of contaminants compared to standard ceramic filters.
Bacteria
The micro-porous ceramic shell physically blocks bacteria, preventing them from passing through the filter.
Fluoride
Specialized filtration media helps reduce fluoride levels commonly found in some municipal water supplies.
Arsenic
Additional filtration media helps reduce arsenic, which can occur naturally in certain groundwater sources.
Chlorine
Activated carbon helps reduce chlorine used in municipal water treatment, improving taste and odor.
Sediment & Turbidity
The ceramic structure captures fine particles such as sediment and rust that can make water appear cloudy.
Duke Berkefeld System Details
Free Shipping
Includes 2 British Berkefeld Ultra Fluoride Ceramic Filters
Includes Plastic Spigot
Serves 3–4 People
Holds approx 2.25 gallons (8.5 liters)
Height x Diameter: 19.25″ x 8.5″
Upper chamber nests within the lower chamber for transport and compact storage
Weight: approximately 9–10 lbs with filters installed
Maximum Filters: Up to 4 British Berkefeld filters
Constructed of highly polished 304 stainless steel
Easy setup and simple installation
Filter Life
Each pair of durable British Berkefeld Ultra Fluoride ceramic filters can treat up to 800 gallons of water before replacement is recommended.
For most households this typically equals around 6 months of regular use depending on water quality and daily consumption.
Filtration Flow Rate
Configured with two Ultra Fluoride filters, the Duke Berkefeld can filter several gallons of water per hour depending on water conditions and how frequently the upper chamber is refilled.
Installing four filters can increase filtration speed for households with higher water consumption.
Duke Berkefeld Frequently Asked Questions
How many people is the Duke Berkefeld designed for?
The Duke Berkefeld is ideal for 3–4 people and works well for small families or households that use filtered water throughout the day.
How much water does the system hold?
The Duke Berkefeld holds approximately 2.25 gallons (8.5 liters) of filtered water.
What does the Ultra Fluoride filter remove?
The filter helps reduce bacteria, chlorine, sediment, fluoride, arsenic, heavy metals, and other common contaminants while improving taste.
How long do the filters last?
Each pair of filters can treat up to 800 gallons, typically about 6 months of normal use.
Does the system require electricity?
No. The Duke Berkefeld uses simple gravity filtration and requires no electricity or plumbing.
Charlton –
Excellent product, excellent customer service.
Anthony –
Good so far.
Sandra Ehrlich –
Great to deal with!!!!! You answered all my questions and didn’t get upset when I called back three times. I now know who I am dealing with and if I have a question Buddy or Danielle are there to help me. I was confused with all the Berkey companies I was getting emails from. KEEP UP THE GREAT CUSTOMER SERVICE!!!! This means a lot and people will feel good to know they can call someone who can speak English and get answers. To me customer services is what brings me back to a company and I would recommend that company to other people. KEEP UP THE GREAT WORK!!!!!!
Tamera –
I have been buying spring water for a long time. But my son bought the duchess a year or so ago, and I became interested in getting one myself. I finally ordered and received it in just 4 days, and only two of those were business days! The water tastes really good! I wish I had bought one sooner!
Tiffani –
I had a few questions about our new Berkefeld so I emailed customer service. They replied so quickly I was a little surprised! They answered my questions thoroughly and explained some things that I did not know. Very happy so far with our product.
SUSAN –
Best water I have ever tasted!
Michele C. –
Love this thing. It might seem expensive but it is paid for. I was paying for a monthly rental before. In 6 months I will have the berkefeld paid for compared to the price I was paying for the monthly service
Sheri –
Was in perfect condition when I received it.
flora –
Now me and my family will have clean drinking water. It’s a peace of mind
Loretta Hutton –
Arrived on time.
Lu Anne –
Absolutely great and it arrived so fast!!
Raymond C. –
It is a very good system!
Jorge –
Love our berkefeld
Chuck s Galeti –
Perfect and fast
Deborah Austin –
The quality of water changed instantly upon receiving the berkefeld gravity filtration system. It was an enhancer to my water intake. It was beautifully polished, just the right size to set next to the facet, but the quality of the water was amazing. It is much easier to meet my water consumption intake goals now. It came quickly and I feel the product is quality. Thank you.
Maria M. –
Took a few minutes to setup. However, it works great and easy to have continuous clean water on hand.
William –
love the water taste using the berkefeld system
Susan –
I love my duke berkefeld ! The water tastes fresh and delicious. It encourages me to drink more. I am always disappointed if I have to be out all day and run out of my filtered water. I intend to buy a filter for all my grown children!
Angela L. –
Water tastes really amazing! Filters seem to be easy enough to prime and it’s easy to assemble!
Robin –
Expensive initially (although the cheaper alternatives require constant filter replacements so they’re not as cheap as they seem). The filtering seems to be REALLY thorough–quite happy with my investment.
Anonymous –
berkefeld people listen to my requests to change shipping address and send my order by certain date which was awesome because it was very important to me.
The product itself is wonderful, easy to assemble and of great quality.
I would recommend it to anyone.
Richard –
berkefeld is the best.
Roger –
easy
michael foster –
As far as I can tell, it works great! I use it daily and I drink tap water once again. I honestly can’t taste the chlorine anymore. (Hopefully it’s not just in my head). The quality of this thing is top notch. I’m glad I spent the money to try one of these out. It filters 2+ gallons in minutes. Love this thing.
Shirley C. –
I haven’t used it yet. I need to prime the filters which is difficult.
Deborah J. –
I’m very happy with my new duke berkefeld . Looks great.. easy to assemble and such a good feeling to know every drop of water has been filtered and is safe to drink or cook with.. I also purchased the white filters . Great company to purchase from. Thank you berkefeld for a wonderful product.
Donna Roberts –
Would’ve been 5 stars if they cared enough to send a reasonable device for priming. The berkefeld works great once you get past priming.
Linda Thompson –
I love this water filter system. I have always purchased gallon bottles of water to fill our coffee machine. Now that I have my berkefeld , I no longer need to do that. The water taste like a high grade bottle of water…..we love our berkefeld !
terry rogers –
Perfect 🥰
Lisa –
Love our berkefeld ! We bought the duke berkefeld for camping because we were tired of running out and buying water jugs before each trip. We sweat the filters and set it up, flushed it, and again with red food coloring…I was amazed that it was crystal clear! We take it on all our camping trips, but we also bring it in the house when we aren’t camping and use it as an additional filter for our well water. Totally worth knowing we have safe water to drink!
mark mason –
love it
Timothy Stratton –
Great product
Shannon Beal –
We love it! Setup was about 30 minutes and we’ve been enjoying excellent-tasting water ever since!
Angela C. –
Product took a while to get out the door. I had to call to get it shipped. Seems like a glitch in the system. Maybe lack of help like everywhere else. Not sure. I did however get it the next day after they shipped it. Thank you for expediting shipment.
Anonymous –
Good
Riley –
Looks good and water dispenses out of it.
Virginia –
fast shipping, easy assembly, and safe, great tasting water; I am so happy with my purchase!
James P. –
Arrived very quickly and so far is everything I had hoped for
Joe –
So pleased with the excellent water.
Jim Bowman –
I bought this as a gift for my daughter’s birthday
i’ve been using one just like it for about 6yrs and
i love it THANKS BERKEY
Anonymous –
Wish they would fit under upper cabinets. They do look good.
Laura B. –
The water tastes amazing!
Mark Alred –
We love this and the water tastes great!! Just don’t overfill the upper chamber, haha!
Anonymous –
I’ve only had my duke berkefeld filtering water for two days, but I love it! The water tastes so pure and fresh and clean!