3M Cuno CFS210-2 Drop-in 20" Selecto Retro-fit Replacement Cartridge, 5 Microns, 45 GPM
$81.30
The Ice Maker Filters by 3M Cuno: Filter Cartridge, 20, standard sediment/rust reduction, 5 micron (for 5606704 & 5606705 systems) ( 3M Cuno - CFS210-2 )