These pleated, cotton filters are standard equipment in Teardrop air cleaners for S&S Super E & G carbs and Single Bore EFI. Also fits new style S&S air cleaners for stock carbs and single bore throttle bodies. Pleated cotton. Washable. Will not fit S&S Super B air cleaners or air cleaner kits for Buell models. 100% Made In America. Part #106-4722