Pack of 3 cartridges to compact reverse osmosis equipment

Cartridges or reverse osmosis filters for compact cs type " cs" . ,cs sediment filter 5 micron ( 10.5 x 2.5 " ) : made ??from polypropylene pressing. ,cs gag carbon filter ( 10.5 x 2.5 " ) : contains activated carbon manufactured by calgon (usa) . ,online carbon postfilter bacteriostatic silver (10 x 2 " ) effective for removing odors , flavors and prevent bacterial growth . the content of this cartridge is manufactured by calgon (usa) . ,references in the cs filter model for compact reverse osmosis . ,291803 activated carbon filtration 5 gac291604 ?m291902 silver charcoal ( in-line )