K&N Recharger Kit 99-5000 is designed to take care of your K&N oiled cotton air filter when it gets dirty. Kit comes with K&N Power Kleen air filter cleaner and K&N air filter oil. The Recharger Kit 99-5000 will restore airflow efficiency and make your air filter like new. K&N Power Kleen works to dissolve old dirt and oil buildup, then can be washed off with water. K&N air filter oil is included so you can re-oil the air filter after cleaning. This Recharger Kit comes with a 6.5 oz aerosol can of oil and a 12 oz bottle of K&N Power Kleen air filter cleaner.