K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration. Features Designed to provide increased horsepower and acceleration Specifically developed for Off-Road Motocross ATVs UTVs and Side by Sides Pleated cotton media provides a large filtration area offering low restriction high-capacity and long service intervals Multiple layers of woven cotton gauze media offer excellent filtration Fits directly into OEM air box with an application-specific sealing bead ensuring a precise fit No fuel management modifications are required to obtain increased performance Washable & reusable most are pre-oiled and ready to ride Specifications Filter Material: Cotton Gauze Washable: Yes Height: 165mm Base Outside Diameter: 117mm Top Outside Diameter: 89mm Flange Outside Diameter: 102mm Flange Length: 29mm Flange Type: Centred Filter Re-Oiling Amount: 31ml Fits: Honda ATC110 1982 ATC90 1973-1978