22-8022PKThis product wraps your air filter with an additional pre-filterExtends service interval of your K&N filter in dusty conditionsDurable polyester material with stitched elastic openingsCleanable with K&N Filter CleanerThe K&N PreCharger filter wrap is specially designed to extend the service interval of your K&N Filtercharger filter when used in very dusty conditions. They are made from durable polyester material containing a uniform weave. The PreCharger will stop small dirt particles with minimal restriction to the airflow of the filter.