Description
The BOROUX Proactive™ Fluoride Filter is a high-performance, alumina-free solution that removes up to 99% of fluoride. Its patent-pending upflow design and dual-layer nano-carbon filtration maximize contact time and purification efficiency. Housed in durable stainless steel shells, it’s compatible with BOROUX Foundation and Black Berkey® filters, delivering up to 1,000 gallons of clean, fluoride-reduced water per pair.

99.9% Fluoride Reduction
Industry-leading removal rate using innovative aluminum-free technology
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Up to 1,000 Gallons ¹
Long-lasting performance for 6-12 months of clean water
Our rigorous testing demonstrates exceptional fluoride removal capabilities throughout the filter’s lifespan. The chart below shows real-world performance data from independent laboratory testing.
Key Performance Metrics
- Over 99% fluoride reduction in the first 280 gallons
- Maintains 78.9% average reduction up to 1000 gallons
- Minimum 47.4% reduction at 1000 gallons
Health Implications of Fluoride Exposure
According to the Fluoride Action Network, ~95% of the reporting domestic water suppliers in the US have fluoride levels of 0.7 parts per million or less.
Understanding Fluoride’s Impact on Health
- Dental and Skeletal Fluorosis
Long-term exposure can lead to dental discoloration and skeletal problems. - Neurological Effects
Research suggests potential impacts on cognitive development and function. - Endocrine Disruption
Potential interference with thyroid and other endocrine system functions.
Protecting Vulnerable Populations
Certain groups are particularly sensitive to fluoride exposure:
- Infants and young children
- Pregnant women
- Elderly individuals
- People with kidney conditions
- Those with compromised immune systems
Our filtration system is specifically designed to provide comprehensive protection for these vulnerable groups.

Specifications
Filter Capacity | Up to 1,000 gallons per pair, depending on the quality of the influent water. ¹ |
Dimensions | 2.67” x 2.67” x 7” |
Composition | Filters are comprised of a specialized blend of activated carbon specifically formulated to address fluoride. |
Compatibility | The BOROUX Proactive Fluoride Filter is designed to be used with the BOROUX foundation™ filter as well as the Black Berkey® Replacement Elements. |
Warranty Coverage | The filter media is covered by a 6-month limited warranty, which includes defects in materials or performance under normal use conditions. The stainless steel shell is backed by a lifetime warranty against defects in material and workmanship.Please note: This warranty does not cover issues resulting from improper installation, misuse, lack of maintenance, unauthorized modifications, or wear consistent with the expected filter lifespan. |
Maintenance | We recommend cleaning the shells of the fluoride filter monthly. Since the water running through the fluoride filter is pre-filtered, there is no need to clean the filters. Reprime the filters if you experience a reduced flow. |
Replacement Filter | BOROUX Proactive™ fluoride filter / Model BX·F·2 |
Box Includes |
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¹ – Based on independent testing for the reduction of fluoride at 1,000 gallons per set of filters. While testing was performed under standard laboratory conditions, actual performance may vary. Filter performance may vary based on local water conditions.