XL Air filter for MAC1 & MAC3.2 Pumper Systems by Rugged RadiosSKU: BLOWER FILTER 3XLR The 3" XL filter offers more surface area for increased filtration in intense, dirty conditions. When racing continuously through dust or plowing through massive silt beds, the XL filter will deliver clean, breathable, filtered air. Ideal for drivers and co drivers competing in long distance races like the Mint 400, Vegas to Reno, and Baja. MULTIPLE LAYERS OF DEFENSE AGAINST DIRT Every Green Filter is hand built using the