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.

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

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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.