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
  • Two BOROUX Foundation Filters
  • Blue Priming Tool - U.S. Patent No. 11,697,082 B2
  • Red Dye Test Solution Learn More
  • Tan Priming Tool
  • Product Insert

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.