Today"s harsh driving conditions demand an air filter with premium protection features. The Tough Guard Air Filter is FRAM"s premium air filter constructed with advanced features to protect your engine under the toughest conditions. Increased dirt holding capacity with pre-oiled media formulated for attracting and capturing smaller dirt and dust particles means your engine is better protected. Increased durability with heavier filter screen provides greater integrity and less likelihood of collapse and tearing in tough driving conditions. Consistent Airflow and Less Restriction. The Pleat lock* glue feature allows for pleats to lock into place for consistent airflow and less restriction to help overall engine performance. *Available on Flex Panel models only. May be application dependent.