K&N, air filter element

Round; 98mm outside diameter x 73mm inside diameter x 51mm deep. Universal for many 4" round & 933807; 933808; 933854; 933853 Rough Crafts air cleaner kits. K&N is the world-wide standard in high-end quality performance air filtering systems. They are washable and can be used as stock replacement. The filter elements are designed with a ribbed surface that will give you up to 5 times more filter area than a regular replacement filter; dramatically increasing airflow. The K&N filter elements have a steel body with cotton between the screens. K&N filters decrease service intervals; are better flame resistant and will last much longer than comparable foam or paper type filters. Note: Any dimensions given are approximately and for reference only.