The BWT ARCTIC 20µm cartridge provides reliable filtration of impurities such as sand, silt, rust, or suspended solids, while ensuring optimal hygiene thanks to its bacteriostatic agent-treated sleeve, which limits microbial growth. Compatible with all standard 10" filter housings and featuring a built-in centering system for easy installation, it is a high-performance and economical solution for protecting domestic systems and sensitive appliances. Replacement is recommended every six months, or more frequently in the event of heavily contaminated water.