The Wix 11.85" Cellulose Air Filter Panel is a top-of-the-line air filter designed to deliver superior performance and protection for your vehicle's engine. With its high-quality construction and advanced filtration technology, this air filter is capable of capturing even the smallest particles, ensuring clean and efficient airflow. The filter is constructed using premium-quality cellulose material, which is known for its excellent filtration properties. This material effectively traps and retains dust, dirt, pollen, and other contaminants, preventing them from entering the engine and causing damage. FleetPride is your First Click in Heavy Duty®.