ProOne has discontinued these filters. Here is a link to an alternative

Aquacera AquaMetix Block Replacement Filter for Big Blue Filters

Found only from ProOne®, the FS10 features ProMax^TM FULL SPECTRUM^TM high-efficiency multi-stage water filter technology. This is our most advanced inline water filter replacement element.

FS10 Replacement Filter includes:

– Electro absorptive non-woven technology removes a wide range of submicron particulates, pathogens, trace pharmaceuticals, and cellular debris using its naturally occurring electro-positive charge

– Multiple stages of infused micro porous foam^TM disk media in tandem, each stage comprised of a unique proprietary formula engineered to target a specific group of contaminants

– Catalytic GAC (granular activated carbon) with enhanced carbon media to help improve taste, odor, and performance in contaminant removal

The FS10 FULL SPECTRUM^TM filter is engineered for unsurpassed performance and maximum contaminant reduction. Independent lab reports show the ProMax^TM FULL SPECTRUM^TM reduces/removes a broad range of over 220 contaminants including VOC’s, lead, fluoride, heavy metals, pesticides, SVC’s, disinfectants, inorganic non-metallics, herbicides, pharmaceuticals, PFOA, PFOS, and micro-organisms. Helps improve taste and odor. Contains no resins or beads.