1. membrane pleated filter cartridge media: polypropylene; 2. micron filter cartridge length: 5'',10'',20'',30'',40'' 1. pleated filter cartridge micron: 0.22um, 0.45um ... length : 5'', 10'', 20'', 30'', 40'';3. membrane pleated filter cartridge media: polypropylene;4. end caps: DOE,-222flat, -222fin, -226flat, - ...