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The K&N Drycharger pre-filter wrap (RX-4730, blue) is a silicone-treated polyester cover made to protect K&N air filters and personal watercraft flame arrestors. The uniform micron-sized openings preserve high airflow while the treated fabric limits the amount of water reaching the filter. Its water-repellent treatment typically lasts one to two years, extending filter service life in damp conditions.
K&N Drycharger Air Filter Wrap Blue for RX-4730
