... media: polypropylene; 2. micron filter cartridge length: 5'',10'',20'',30'',40'' 1. pleated filter cartridge micron: 0.22um, 0. ... 45um, 0.6um, 1um, 5um, 10um, 50um, 100um....;2. micron filter cartridge length : 5 ... '', 10'', 20'', 30'', 40'';3. membrane pleated filter cartridge media: polypropylene;4. ...