OEM Replacement – Direct fit for CRF250R (2018–2019) & CRF450R/CRF450RX (2017–2020) Perfect Fit – Exact match to OEM Part# 17213-MKE-A00 specifications Washable & Reusable – Long-lasting dual-foam design for off-road use Easy Installation – Drop-in replacement, no modifications needed Factory-Spec Filtration – Maintains original airflow and engine protection