NO TOIL manufactures the world's best 2-stage foam air filters. Using only the best flame-laminated dual-layer foam bonded with the highest quality glue they hand make each foam filter to stand up to the roughest and toughest riding or terrain. NO TOIL filters can be used with NO TOIL biodegradable clean in water cleaner providing the best air filtration system in the world. Fits: Husqvarna TC85 Big Wheel 2018-2021 TC85 Small Wheel 2018-2021 KTM 85 SX (Big Wheel) 2018-2022 85 SX (Small Wheel) 2018-2022