Vostok 10"x2.5"Universal Cotton String Wound Sediment PP Filter Replacement Cartridge String Filter Cartridge  (0.0005, Pack of 5)

A string wound sediment filter is a type of water filtration system that uses a tightly wound string around a central core to filter out sediment and other particulate matter from water. The string is typically made of polypropylene or cotton and is tightly wound to create a dense filter matrix that traps and removes particles as water passes through it. These types of filters are commonly used in residential and commercial applications to remove sediment and other particles from well water or municipal water supplies.