E-3040 – Oval Air Filter. UK VAT Included in price. The K&N replacement air filter for RK Series air cleaner assemblies is designed to increase horsepower and acceleration while providing excellent filtration. The air filter is washable and reusable and designed to be used as a replacement air filter for specific K&N RK Series air cleaner assemblies for Harley-Davidson motorcycles. Replacement air filter for specific RK Series air cleaner assemblies. Designed to boost horsepower and rate of acceleration. High air flow filter media provides exceptional filtration. 9.375 in (238 mm). 6.125 in (156 mm). 2.25 in (57 mm). 1.60 lb (0.73 kg). Please check before ordering. Check the dimensions and product details carefully for universal or non-vehicle-specific parts. Price includes UK VAT. Item location: Wellingborough, United Kingdom.