aFe MagnumFLOW Air Filters Round Racing PDS A/F RR PDS 14 OD x 12 ID x 3 H E/MConstructed with 100 percent polyurethane on top and bottom; this high flow oiled performance filter will outflow stock paper filters for improved horsepower and torque. Washable and reusable for multiple cleaning cycles; the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bumps seal insures tight not leak seal over the life of the filter.