1.100% pure polypropylene construction 2. Excellent chemical compatibility 3. No lubricants or anti-static additives. Specification: 1. Filter Media: polypropylene2. Outside diameter: 69mm3. Inner diameter: 28mm4. Length:10",20",30",40"5. Filter fineness: 0.08~0.1/0.22/0.45/0.5/0.66. End caps:DOE,-222flat,-222fin,-226flat,-226fin and others

pleated filter cartridge