K&N Engineering Drycharger Air Filter Wrap

K&N Air Filter Wrap # RF-1012DK: Additional Filtering Barrier Reusable/Washable Long Lasting Performance Limits Water From Reaching Air Filter Silicone/Polyester Wrap This product wraps your air filter with an additional pre-filter Extends service interval of your K&N filter Durable silicone treated polyester material with stitched elastic openings Water repellent treatment typically lasts 1 to 2 years