The K&N Drycharger silicone-treated polyester wrap protects K&N air filters and personal watercraft flame arrestors while preserving airflow. Uniform micron-sized openings allow high air flow but limit the amount of water reaching the element. The water-repellent treatment typically lasts one to two years and this wrap is offered in K&N’s yellow finish (RX-4990).
K&N Yellow Drycharger Round Tapered Air Filter Wrap