aFe POWER CLEANER 32oz For Dry Air Filters - UniversalFor Pro DRY S Air Filters: This POWER CLEANER was specifically developed for aFe POWER's PRO DRY S air filters, breaking down dirt and dust without damaging the synthetic material. Cleaning Air Filters: Simply spray the cleaner onto the filter element, rinse, and your air filter is good to go. No oil is necessary when servicing Pro DRY S air filters. Refer to the instruction sheet for more information. Details Maintain your air filter's optimal