The K&N Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used in very dusty conditions. The Airforce Pre-Cleaner is designed to be cleaned with K&N Cleaner or soap & water. Gray colored Airforce pre-cleaners do not use oil.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
