Coarse open-pore foam catches airborne dirt, grime and sand
Fine open-pore inner foam acts as a second filter to trap the smallest particles while ensuring maximum air passage
Exclusively formulated adhesive ensures glue seams will not break down
Thick flat-foam greaseless sealing ring ensures maximum contact with your air box, while acting as a breathable gasket for increased air passage
Fused outer and inner elements prevent dirt and grime from being lodged between layers