Sprint Filter T12 - The Low Maintenance Air Filter for Extreme Conditions 12 micron polyester tissue ISO 5011:2020 independently certified class leading air flow and filtration low maintenance - blow clean with compressed air dry filter - no oiling or washing recommended for Adventure, desert, harsh off-road conditions Part no. SM248T12 Model compatibility Honda CRF 250 R / RX 2022 – current Honda CRF 450 R / RX 2021 – current Cross References Honda 17213-MKE-AF0 Twin Air 150230 Uni NU-4153ST