BOROUX Foundation black filters are compatible with popular water filtration systems.  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 warranted and guaranteed to filter effectively for 12 months. The black carbon filter elements are equipped with Stem Saver technology for added durability during handling and cleaning.

HSA/FSA Eligible at Checkout.