The image shows a string wound water filter cartridge, commonly used for sediment filtration in water systems.
These cartridges are designed to remove dust, rust, silt, sand, and other sediments from water.
They are available in various lengths and micron ratings (e.g., 5-micron, 10-micron) to suit different filtration needs.
String wound filters are a type of depth cartridge filter, often made from polypropylene cord wound around a rigid core.
They are used in various applications, including whole-house water filtration and industrial processes.