MAC4 Pumper Pre-Filter


Outerwears® Pre-Filters are highly recommended for applications that are used in extremely rugged environments. The Outerwears® Pre-Filters are manufactured from a durable water resistant polyester material. With uniform micro openings that filter out debris 5 microns and larger, dyno & flowbench testing has proven no significant loss in power or airflow using this product.

Fits only MAC4 series filters. Click here for the replacement pre-filter for MAC1 air pumper systems.

Pictured with replacement MAC4 filter (sold separately)