QuadBoss Outerwears Pre-Filters For Kawasaki KFX400 2003-2006 / Suzuki LT-A400F 2008-2011 / LT-A500F/LT-F400/LT-F400F 2002-2005 / LT-Z400 2003-2009 - Black - 20-1594-01Protects engine and air filters against dirt and debrisHydrophobic manufacturing process repels waterHorsepower levels are maintained longer due to cleaner primary filterOuterwears pre-filters are washable and reusable