aFe MagnumFLOW Air Filters Round Racing PDS A/F RR PDS 14 OD x 12 ID x 4 H E/MaFe MagnumFLOW Air Filters Round Racing PDS A F RR PDS 14 OD x 12 ID x 4 H E M Constructed with 100 percent polyurethane on top and bottom, this non oiled filter with three layers of pregressive synthetic media provides good performance with the convenience of not having to oil the filter. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between