Melt Blown Filter Cartridge is fusing and intertwined of polypropylene resin without any chemical glues. The cartridges are glued at random to form 3D micro pore which will make the cartridge 3 layers with fine fibers in surface and coarse fibers for deep filtration. With strong pollutants holding capacity, it can remove contaminant effectively such as suspended substance, particulate and rust etc. The hairy surface increases the resistance to the liquid flow, which enables the filters better dirt holding capacity.