Part no. RHK-0.2.36 Fitment: Kawasaki KX 250F 2021-2022 Kawasaki KX 250X 2021 Kawasaki KX 450F 2019-2022 Kawasaki KX 450X 2021 RHK Filters are designed and manufactured to increase airflow whilst ensuring the ultimate level of protection. RHK Filters consist of an outer layer of coarse open-pore foam which catches large dirt, grime and sand particles. The 2nd inner layer of fine open-pore foam aids in catching minute & finer particles whilst delivering maximum air flow.