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: Suzuki LT230E QUAD RUNNER 1988-1993 LT4WD 250 QUAD RUNNER 1987-1998 LTF250 2WD 1988-2001 LTF250 OZARK 2WD 2002-2020 LTF250 QUADRUNNER 2x4 2002 LTF250F QUAD RUNNER 4WD 1999-2002 LTF300F KING QUAD 4WD 1999-2020 LTF4WDX Quadrunner (300cc) 1991-1998 LTZ250 QUADSPORT 2004-2012