- Cellulose based in activated carbon filter cartridges- Carbon treatment and pre- filtration from fine media- No leakage of pound of carbon at initial filtering - Nominal micro ratingsMaterials Polypropylene and activated carbon media Polypropylene core and cage and adaptorsApplications Plating solutions Chemicals Removal of taste/odor/organicsCartridge size I.D/O.D 28mm / 63mm Length 10" - 40"Cartridge style DOE 222 /Flat 222 /Fin 226 /Flat 226 /Fin