FOAM AIR FILTERS: 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 of any style of riding or terrain. These filters, used with No-Toil foam filter oil, provide the best air filtration system in the world! (Remember: NO TOIL oil washes clean in water and is 100% biodegradable; dirty water can be thrown down the sink. You do not need to use harmful petrol or kerosene to clean your filter. Fits: Honda BIG RED MUV700 4WD 2009-2013 SXS500M2 Pioneer 500 2014-2021 SXS700M2 Pioneer 700 2 2014-2021 SXS700M4 Pioneer 700 4 2014-2021 TRX420FA2 4WD RANCHER 2014-2016 TRX420FA2 4X4 DCT FOURTRAX RANCHER 2016-2020 TRX420FA6 IRS 4WD RANCHER 2015-2020 TRX420FA6L IRS 2021 TRX420FM1 4WD RANCHER 2014-2020 TRX420FM2 4WD RANCHER 2014-2020 TRX500FA RUBICON 4WD 2001-2013 TRX500FA6 IRS 2014-2020 TRX500FE FOURTRAX FOREMAN 4X4 2005-2011 TRX500FGA FOURTRAX FOREMAN 4X4 2005-2009 TRX500FM 4WD FOREMAN 2005-2007 2009-2011 TRX500FPAC RUBICON 4WD 2011-2013 TRX500FPE FOURTRAX FOREMAN 4X4 2007-2011 TRX500FPM 4WD FOREMAN 2008-2011 TRX520FA6 IRS 2020 TRX520FA6L 2021 TRX520FM2 2020 TRX520FM6 IRS 2020 TRX680FA IRS RINCON 2012-2013 TRX680FA IRS RINCON 4WD 2006-2011 2014 TRX680FA IRS RUBICON 4WD 2015-2021