Polyester wrap pretreated with silicone. Contains uniform micron openings so air can get in but dirt and other contaminants cannot. Silicone treatment deflects water splashed on the air filter. Uses sewn-in elastic opening to securely fasten to the air filter.

• This specially designed filter wrap is made to extend the service interval of K&N Filterchargers when used in dusty conditions
• Contains uniform micron openings like the K&N Precharger, so air can get in but dirt and other contaminants cannot
• Silicone treatment deflects water splashed on the air filter
• Uses sewn-in elastic opening to securely fasten to air filter
• Custom fit to each application