PP pleated cartridge filter , nominal and absolute grade . the micron rate can be 0.1um,0.2um,0.45um,1.0um,5um,10um,30um,50um PP pleated cartridge filter , nominal and absolute grade . the micron rate can be 0.1um,0.2um,0.45um,1.0um,5um,10um,30um,50um The cartridge OD can be 56mm,68mm,70mm, 100mm and 130mmLength can be 5",10",20",30",40"Widely used for water treatment , food &beverage , ...