Twin Air 158028 Racing Air Filter for Beta RR 250 / 350 / 390 / 400 / 450 / 2000 KTM 640 LC4 Duke 2002 Yamaha Wave Venture XL

2002 Yamaha Wave Venture XL 700

1982 Suzuki FZ50

2014 Polaris Indy 600

1998 Polaris Indy Storm 800

2012 Honda TRX420TE FourTrax Rancher ES

Twin Air 158028 Racing Air Filter for Beta RR 250 / 350 / 390 / 400 / 450 / 2000 KTM 640 LC4 Duke 2002 Yamaha Wave Venture XLTwin Air Racing Dual Stage Replacement Air Filter Fused dual layer design for a combined increase in performance and protection Revolutionary micro gluing process minimizes seams for added protection Washable and reusable up to 50 times without replacement New Round design boosts air flow Twin Air's breakthrough, fused dual layer design (now widely copied) for combined performance and protection. The fused layers of open pore foam and fine inner foam