New in box. Includes Aeorosol air filter oil (99-0504) and air filter cleaner (99-0606). The K&N Filters Recharger Filter Care Service Kit 99-5000 is a convenient aerosol spray kit designed for air filter maintenance. It includes filter oil and cleaner, with a 90-day manufacturer warranty. The kit comes in a 12 US fl oz. container with a 6.5 oz. spray oil size, making it easy to use and store. With free shipping and fast delivery, this product is perfect for keeping your air filter in top condition for optimal performance.