AA9-18-1 Pneumatic Filter
Tempest manufactures a complete line of FAA-PMA approved aviation pneumatic filters. Tempest pneumatic filters use .3-micron filtration elements which offer superior protection against outside contaminants, such as dust and other cabin pollutants. Using Tempest pneumatic filters and replacing them at proper intervals will keep your system clean and improve pneumatic system performance.
Pneumatic Filter Application Guide: