Wide-spectrum cartridge with the addition of finer particulate filtration to filter microfibers and cysts.  

Same as the STANDARD cartridge plus additional filtration of finer materials including small microfibers and cysts. 

NEW Cartridge Casing FOR IMPROVED DURABILIY.  Will look a little different than your older filter. 

Replace filter cartridge once a year.

Optional replacement filter cartridge filters water to 1 micron. This is fine enough to remove cysts. This is an alternative to the KR-101N Standard wide-spectrum cartridge. This one-micron filter will remove particles 1 micron and larger with 99.99% removal. A micron is 1/1000th of a milometer.

This fits all of our kitchen canister filters.  Can be used last in line in place of a KR101N on any of our kitchen canister filter systems.