K&N Drycharger Air Filter Wrap Pl-1014-1Dk The K&N DryCharger provides an outer layer over your filter that carefully incorporates silicone-treated polyester fabric, designed to safeguard K&N Air Filters. Remarkably similar to K&N Prechargers, DryChargers feature consistently sized micro-openings that promote generous air circulation whilst effectively reducing the number of water droplets contacting the filter component. Features: Minimizes water and moisture transfer to filter elements Maintains high airflow - even in wet conditions Helps prevent moisture from saturating filter media Hydrophobic silicone-treated polyester Micron-sized openings specifically designed to block water droplets Designed specifically for K&N Air Filters Note : Air filter not included.