Product details:
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 withstands repeated cleaning. Even with harsh solvents or gasoline.to everybody. Twin Air filters are slightly smaller than stock filters to increase air space around the filter and improve circulation. Independently tested by the most prestigious engineering lab in Germany and was found to be the superior filter oil on the market.