For the Method Oval & Stage 2 Oval air cleaner kits. This is a Pre-filter, also called a rain sock. Designed for riding in adverse weather conditions, extreme rain, dust etc. Will help prevent water & dirt from getting into intake system without restricting airflow. - 100% monofilament polyester with water repellent finish - Hydrophobic technology repels water in most all riding conditions - Installs over the oval air cleaner in seconds. - Installs over the oval air cleaner in seconds - Fitment: Method Oval air Cleaners and stage 2 Oval air cleaners. Note: Not compatible with Arlen Ness Stage 2 Oval Upgrade air cleaners designed to work with OEM oval H-D / Screamin' Eagle Ventilator backing plate for M8 models. For these air cleaners see 708632.