K&N, dry charger / rain sock

Optional rain sock/pre-filter; for adverse weather conditions. Similar to the K&N pre-chargers. Silicone treated; polyester filter wrap. contain uniform micron sized openings that allow high air flow. Yet; due to the Drychargers silicone treated polyester wrap; the amount of water that reaches the air filter or flame arrestor is limited. – 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 – Base inside diameter: 6.25″ (159mm) – Top inside diameter: 5.50″ (140mm) – Height: 2.125″ (54mm)