The high-flow filter housing is equipped with one or several PP high-flow pleated filter cartridges. The structure is similar to a multi-bag filter housing. The filtration speed of a single filter cartridge and a single filter bag are also similar. The difference is that the high-flow filter cartridge has a multi-layer folded structure with a Larger filtration area to hold more sewage. At present, High-flow filter housings are mainly used to filter water, such as circulating water in thermal power plants, and preliminary security filtration of reverse osmosis membranes in seawater desalination.