Twin Air 150021 Dual-Stage Air Filter for 1974 Honda CR250R 1990 Honda TRX300FW Fourtrax 1994 Harley-Davidson FLSTN Heritage Softail

1994 Harley-Davidson FLSTN Heritage Softail Deluxe

2005 Kawasaki ZX1000 Ninja ZX-10R

2008 BMW F800ST

Designed for the highest quality and a perfect fit

2003 Polaris Ranger 500 6x6

Twin Air 150021 Dual-Stage Air Filter for 1974 Honda CR250R 1990 Honda TRX300FW Fourtrax 1994 Harley-Davidson FLSTN Heritage SoftailTwin Air Racing Dual Stage Air Filter Part Number: 150021 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