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: Kawasaki KLF220 BAYOU 2WD 1988-2002 KLF250 BAYOU 2003-2007 KLF300B BAYOU 1988-2008 KLF300C BAYOU 1989-2010 KVF300A PRAIRIE 1999-2003 KVF300B PRAIRIE 1999-2003 KVF400 PRAIRIE 1997-2002