The complete water wellness solution. This bundle pairs our industry-leading BOROUX Foundation™ Water Filters with our BOROUX Proactive™ Fluoride Reduction Filters, featuring a patent-pending upflow design and dual-layer nano-carbon filtration that maximizes contact time and filtration efficiency, providing an impressive level of contaminant reduction for your gravity-fed system. Enjoy 12 months of pristine, great-tasting water with the peace of mind that comes from 100% alumina-free filtration.
What's Included
TheBOROUX Foundation™ FilterandBOROUX Proactive™ Filtersare meticulously designed to seamlessly integrate with most gravity-fed water filtration systems, including Berkey®, ProOne®, Alexapure Pro, Doulton, Patriot Pure Ultimate, and more. Whether it's refreshing your existing setup or initiating a new journey in water wellness, these filters have been crafted for broad compatibility with gravity-fed systems.
List of compatible water systems
Peace of mind knowing your water is pristine.
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Less frequent replacements, providing more savings.
Industry-leading removal rate using innovative aluminum-free technology
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Safe filtration without aluminum risks, guaranteed.
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To comply with state regulations, BOROUX filters are only for use to reduce chlorine, chloramine, microplastics, and nominal Particulate Class I in California and Iowa.
The contaminants listed below this warning do not pertain to our California and Iowa compliant products.
Our state-of-the-art filtration technology doesn’t just filter water; it transforms it. By removing up to 99.97% of harmful contaminants, BOROUX Foundation™ filters ensures your water is as pristine and refreshing as nature intended. Explore the specific contaminants our filters eliminate and how exposure to them can impact your health.
Every System comes with our advanced Foundation™ Filters (Set of 2) that deliver exceptional water quality and lasting performance.
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.
Filter Capacity |
We recommend replacing a pair of BOROUX Foundation Filters every 12 months. Filter lifespan will vary depending on source water quality and usage. |
Dimensions |
2.75” x 8.5” x 9.75” |
Composition |
Filters are comprised of a specialized blend of activated carbon. The BOROUX Foundation Filters contain silver, an antimicrobial agent, to prevent microorganisms from degrading the product itself. This filter is not intended to filter microorganisms. |
Compatibility |
Fits most gravity-fed water filtration systems and fluoride filters. |
Warranty Coverage |
The BOROUX Foundation Filters are warranted to be free from defects in material and workmanship for one year from the date of purchase. This warranty does not cover failures resulting from abuse, misuse, alteration, damage, failure to follow installation and use instructions, or wear consistent with the expected filter lifespan. If the product is deemed defective, we will replace it. Proof of purchase, a description of the product, and an explanation of the alleged defect must be provided to process a warranty claim. |
Maintenance |
Scrub the BOROUX Foundation Filters every 3-6 months. Using an abrasive scouring pad, carefully scrub the surface of the filters for several minutes. DO NOT use soap or detergents on the filters. Re-prime the filters, install, and perform the red dye test to ensure proper installation of the filters. |
Replacement Filter |
BOROUX Foundation Filter / Model BX·FND9·2 Manufactured in the United States with domestic and internationally sourced materials |
Box Includes |
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¹ - Based on independent testing for the reduction of chlorine at 6,000 gallons per filter. While testing was performed under standard laboratory conditions, actual performance may vary. The contaminants or other substances removed or reduced by these filters are not necessarily in all users' water. Filter performance may vary based on local water conditions.
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 |
Compatible filters:
Compatible filter systems:
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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. |
Maintenance |
We recommend cleaning the shells of the fluoride filter monthly. Since the water running through the Proactive 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.
This product is not yet available for California and Iowa residents.
The BOROUX Foundation Filters are WQA certified to NSF/ANSI 42, NSF/ANSI/CAN 401, and NSF/ANSI/CAN 372. All of the certicate testing is performed by the Water Quality Assosciation (WQA).
BOROUX Foundation Filters work by absorbing and trapping contaminant molecules. The carbon attracts and absorbs molecules with a certain chemical charge. They stick to the carbon, like how a magnet attracts metal. The tiny pores of the carbon block are so small that they physically block and trap tiny particles. It's similar to a sieve or strainer.
We recommend replacing a pair of BOROUX Foundation Filters every 12 months. Filter lifespan will vary depending on source water quality and usage.
A pair of filters is warrantied and guaranteed to effectively filter for 12 months.
A specialized blend of activated carbon.
See thefull list and the latest contaminanttest results.
The BOROUX Foundation Filter is not intended to filter microorganisms.
We’re excited to announce an upgrade to our Foundation Filters: transitioning from the original blue stem savers to a new, integrated black stem saver design. Unlike the previous version, was attached to the Foundation Filters with a food grade adhesive, the new stem savers are precision molded directly into the filter. This streamlined, one-piece construction enhances product durability and reduces the need for adhesives. The result is a stronger, more reliable filter that meets our highest standards for performance and quality. The filters with a pink stem saver are only available for the states of California and Iowa.
When first using Boroux Fluoride Filters, it's pretty common to experience a slight earthy or mineral taste at first. This usually goes away after you prime the filters for about 5 minutes using the blue filter primer or 2 cycles with the automatic priming pump with hot water (around 100°F). Using the blue priming tool and higher water pressure can also help improve the taste.
Yes, our BOROUX Proactive Fluoride Filters are designed to be fully compatible with Berkey® systems. They attach directly to the lower chamber of most standard gravity-fed filtration units. This allows you to continue using your existing setup while benefiting from BOROUX’s advanced fluoride-reducing technology.
However, we always recommend confirming thread size and chamber fit for your specific model to ensure seamless installation. If you need help determining compatibility, our team is here to assist!
Yes, the stainless steel shell is essential for proper performance. It supports our upflow design, which directs water from the bottom up—slowing the flow rate and increasing contact time between water and filtration media. This optimized interaction enhances fluoride reduction and overall effectiveness.
Yes, you'll need one BOROUX Proactive Fluoride Filter for each BOROUX Foundation Filter in your system. The Proactive Fluoride Filters are designed as a 1-to-1 companion product, meaning each fluoride filter connects directly to one Foundation™ Filter.
This ensures balanced flow, proper filtration performance, and maximized fluoride reduction across your entire system.
BOROUX Proactive Fluoride Filters are not available to ship to California or Iowa due to state-specific regulations and compliance requirements. These states have unique laws regarding the sale of water filtration products that make certain contaminant reduction claims.
We're actively working to meet the necessary certification standards so we can make these filters available to residents in both states in the future.
The BOROUX Proactive Fluoride Filter attaches to the stem of the BOROUX Foundation Filter and is suspended in the lower chamber.
The water passes through the BOROUX Foundation Filter. Then water first comes in contact with the granulated carbon in the inner layer of the fluoride filters.
Then, the water filters through the nano-carbon outer layer. The upflow design of the stainless steel shell, makes the water stay in contact with the outer layer for a prolonged period of time, providing superior filtration.
The filtered water exits the top of stainless steel shell through the outlet holes and into the lower chamber.
