With five layers of progressively finer mesh cotton gauze media between a 100% polyurethane top and base, this high-flow oiled inverted conical performance filter provides excellent airflow for maximum horsepower and torque. Washable and reusable for multiple cleanings, the tall, open, evenly spaced pleats provide excellent dust holding capacity for longer service intervals. A pliable polyurethane flange with integrated bumps ensures a tight, leak-free seal for the life of the filter.