Part no. RHK-0.1.28 Fitment: Honda CRF150R 2007-2022 Honda CRF150RB 2007-2022 "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."