The Cartridge filter ( penyaring air ) most often considered as an alternative to a filter cartridge.Mainly used in food and beverage industry,pharmaceutical industry,non-ferrous metallurgy,chemical plant,building section and mining industry,power plant etc.Generally a much finer aperture and often used as stage 2 screen and disc filtration and before UV disinfection. Bags can be washed and reused depending on the water. A simple line of defense usually 1micron to 50micron.