K&N Air Filter Cleaner - Restores Performance, Includes Power Kleen & Red Filter Oil - Car Additives & Fluids - 32 Fluid oz. in the Car Additives & Fluids department at Lowes.com
K&N Aerosol Spray Air Filter Oil | 6.5 oz. & 12.25 oz. Can – GO Motorsports Shop
Amazon.com: K&N Universal Clamp-On Air Intake Filter: High Performance, Premium, Washable, Replacement Air Filter: Flange Diameter: 2.5 In, Filter Height: 6 In, Flange Length: 0.625 In, Shape: Round, RD-0720 : Automotive