aFe ProGuard7 washable/reusable cotton air filters are made from high-quality materials to ensure a tight seal without gaskets or sealant. They're available in a variety of shapes and sizes and outflow any other filter on the market. Since air moving in a straight line flows faster, these filters can actually improve airflow and fuel economy.
Pro GUARD 7's patented 7-layer media uses 5 layers of progressive cotton gauze, 2 layers of random porosity, non-woven synthetic fiber, and specially formulated oil to provide the highest filtration efficiency available. You will never need to buy another filter again because aFe Pro GUARD 7 filters can be washed and re-oiled time after time.