The 3M Cartridge Filter Holder 7586 is a replacement part for 3M reusable respirators, specifically designed for use with 3M Half Facepiece Respirators 7501, 7502, and 7503 (sold separately). It maintains the original performance standards of the facepiece and ensures a reliable, secure fit for cartridges and filters. The holder comes with two inhalation valves and one exhalation valve, supporting proper airflow and filtration during use. As a replaceable connector assembly, it can help extend the effective service life of respirator systems making maintenance simpler and more cost-effective for industrial or occupational users.