K&N 99-5000 Aerosol Recharger Filter Care Service Kit Includes 6.5 oz. air filter oil, 12 oz. filter cleaner Weight of the recharger kit is 2 lb (0.9 kg.) Air filter oil prevents dirt from entering your engine and works to dissolve the dirt build up and oil This item is not for sale in Catalina Island Special Shipping Information: This item cannot be returned and has additional shipping restrictions