sometimes it is treated for desalination, and at times to remove oil contamination, the list is endless. In addition to water, various type of alkalis, acids, solvents, inks, and beverages also need to be filtered. Filtration equipment has to be selected based on the type of filtration requirement. There are numerous cartridge filter options like string wound, melt-blown, pleated, and more. The list is exhaustive. In this blog, we will concentrate on the string wound cartridge filters. What is a string wound cartridge filter? String wound filter cartridge is a type of depth cartridge filter that is made by weaving yarn around a core. Microfibers are twisted and twined together to form a yarn. This yarn is woven in a honeycomb-shaped weave around the core such that it forms a gradient structure to allow better filtration. The quality of a wound filter cartridge hugely depends on the type of yarn, the material of the core, and a controlled manufacturing mechanism that produces a precise micron rating.