Putoline Action Filters are especially designed for Off -Road use and are of a foam type design that can be washed using specially designed cleaning liquids, re-oiled and then re-used. A clean and correctly oiled air filter will minimise the intake of harmful deposits, increase power output, ensure smooth running and considerably increase the life of all Off -Road motorcycle engines.Pre-oiled using the world number one air filter oil, Putoline Action Fluid. Making these filters ready to use straight out of the bag.Washable foam construction allows for easy servicing in-between rides.Bike specific fitment means that no modifications are needed to fit these filters.Putoline Action Filters are produced using the finest materials available and constructed using 2 layers of high quality bonded open-pore foam.PLEASE NOTE: Image For Illustration Purposes Only. Shape & Size Will Vary Depending On Make/Model. The Darker Image Is Pre-Oiled Example And The Lighter Colour Is A Dry Filter Examp