With five layers of progressively finer oiled cotton gauze media, two layers of synthetic media, and a 100% polyurethane top and base, this high-flow inverted conical performance filter provides excellent airflow for maximum power and protection. 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.