The CuZn UC-2K Fluoride + Wide Spectrum Water Filtration System (Amazon ASIN#B00Y3C58Q2). CuZn Water Systems est.1987, have been manufacturing top quality filtration systems for 3 decades. We have dedicated ourselves to discovering and supplying the best performing water & air filtration products available. When it comes to the purity of our products, we simply do not compromise and we never cut corners. The CuZn KR-101N wide-spectrum cartridge that will filter out pretty much any contaminant found in municipal water. The FR-1 targets Fluoride specifically to insure high efficiency reduction of that contaminant. This cartridge combo may be compatible with your filtration system, send us a message and we’ll check for you.