The K&N Drycharger pre-filter wrap in black is a silicone-treated polyester cover sized to a 6.625 in base ID, 5.25 in top ID and 9.5 in height for compatible round tapered K&N filters. The Drycharger limits the amount of water reaching the filter while maintaining high airflow through uniform micron-sized openings. The water-repellent treatment typically lasts one to two years under normal use.
K&N 6.625in Base ID / 5.25in Top ID / 9.5in H Round Tapered Black Drycharger Air Filter Wrap