K&N Engineering Air Filter Drycharger - Round Tapered - RX-3810DK

K&N DryChargers are manufactured from a durable polyester material and are pre-treated with a proprietary hydrophobic process designed to prevent splashes of water or mud from saturating your K&N air filter.
The DryCharger will also stop small dirt particles; yet add little restriction to the airflow of the filter.
Please be aware the DryCharger is water repellent, not water proof.
Depending on conditions and usage the water repellent treatment is good for 1 to 2 years.