K&N direct replacement air filters are constructed with oiled cotton gauze, produced for light industrial applications. Some equipment they're ideal for includes chain saws, generators, utility lawn and garden units, air compressors, and other small industrial engines. K&N air filters maintain superior filtration while they deliver high air flow. The reduced air restriction means your engine breathes more efficiently, increasing performance. When it's time for service, K&N's filter care service kit makes cleaning these washable, reusable air filters a breeze. Just follow the simple instructions. These filters come in a variety of dimensions, fitting a wide array of applications.