We are offering atlas filtri - ac - pleated polypropylene-borosilicate cartridge. Cartridges made of pleated polypropylene-borosilicate dual layer filter medium with extruded polypropylene outer cage, designed for fine and very fine particle filtration, with large filtering surface providing long service time, high water flow and low pressure drop, filtration at 0.45 and 0.2 micron. Height 10" and