Twin Air Pre Oiled Air Filter 154218FRX fits 2016-2020 Husqvarna FC250, FC350, FC450 / 2017-2019 Husqvarna FE250, FE450 / 2017-2020 Husqvarna FE350, FX350 / 2017-2018 Husqvarna FX450 / 2017-2019 Ktm 250 EXC F

Filter only for use with Twin Air Power Flow kits.Twin Air dual-stage filters are the choice of top factory teams and riders worldwideDual-bonded foam design filters out even the smallest dirt particles, while allowing more airflow than two separate layer filters (flow bench proven)Flat foam sealing ring provides a secure seat against the airbox, even in the worst riding conditionsTwin Air filters are slightly smaller than stock, making them easier to change while increasing dead air space around the filter for better performance