The aFe Filter GUARD polyester pre-filter pair protects compatible Magnum SHIELD air filters by trapping large debris before it reaches the main media. Made from a dry weave polyester that repels water and dirt without significantly restricting airflow, these pre-filters clean easily with soap and water and extend the primary filter’s service interval. Each kit contains two pre-filters sized for specific filter SKUs.
aFe Filter GUARD Polyester Pre-Filter For use with skus 21-91136-MA 24-91136-MA & 72-91136-MA