EPP Series Melt Blown Cartridge is the standard one of Darlly filter cartridges.It is pused and intertwined of polypropylene resin without any chemical glues. The cartridge is glued at random to form 3D micro pore which will make the cartridge 3 layer with fibers in surface and inside. With the fiber, density from high filtration rating, strong pollutants hold capacity, low pressure drop, gradual changing structure loose outside and close inside, it can remove contaminant effectively, such as suspended substance, particulate and rust, providing efficient filtration and long service life. Economical design makes the filter has more cost advantage to help users reduce costs.