Upgrade your cooling system with the SANYO DENKI Resin Filter Kit (part 109-1002F40), specifically designed for DC/AC fans ranging from 60-120 mm in size. This filter kit ensures optimal performance and efficiency by providing protection against dust and debris, prolonging the life of your fan. Enhance the lifespan of your equipment and maintain superior airflow with this easy-to-install resin filter kit from SANYO DENKI.