Freedom Air Filters has a re-usable pre-filter designed to fit over externally mounted air cleaners. The pre-filters repel rain and snow in addition to filtering road debris down to .005-in. These pre-filters save money by extending filter-service intervals, the company says, as test results show no significant loss of airflow, and horsepower levels are maintained longer due to a cleaner, drier air filter. Pre-filters are designed to be used multiple times and are easily cleaned with soap and water.
Freedom Air Filters