Constructed with 100% polyurethane on all four sides, this high- flow, oil free OE replacement performance filter will out flow stock paper filter by 25% for improved horsepower and torque. The Pro DRY S air filter uses "oil free" media which provides maximum convenience with excellent airflow for best performance results. Washable and reusable for multiple cleaning cycles, the tall open evenly space pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.