The K&N Drycharger is a silicone-treated polyester wrap designed to cover K&N air filters or personal watercraft flame arrestors. The wrap contains uniform micron-sized openings that allow high airflow while limiting water intrusion; the silicone treatment provides water repellency. Typical water-repellent treatment life is one to two years, extending service life in wet conditions.
K&N Black Drycharger Round Tapered Air Filter Wrap