AfE Power 24-91051 Air Filter High performance filter will outflow stock paper filter Washable and reusable for multiple cleaning cycles Constructed with 100% polyurethane on top and bottom Five layers of progressively finer mesh cotton gauze media 5-1/2 F x 9 B x 7 T (Inv) x 8 H in Improves airflow for better performance and acceleration Pre-oiled, washable/reuseable air filter for long service life with life-time warranty Pro-5 R Five-Layer Progressively finer mesh cotton media for high airflow with high filtration efficiency. Tall, Rounded, evenly-spaced pleats for maximum dust holding capacity Constructed with 100% pliable polyurethane for great seal without use of foam gaskets or sealing grease