aFe Power 30-10255 Magnum FLOW OER Pro 5R Air Filter Oiled Pro 5R Filter, 5-Layers Of Progressively Finer Mesh Cotton Gauze Oiled Media OE Direct Replacement For Easy Installation, Washable & Reusable A/F For Multiple Cleaning Cycles Made with 100% 55 Shore "A" Polyurethane Frame For Durability, 25mm Deep Pleats For Longer Service Cycle Progressive Bump Seal Design requires no sealing grease or gasket, Drop-in fitment for hassle-free installation Manufactured and Assembled in the USA