Universal Clamp-On Air Filter (KNNRU-5321)Description KandN's universal clamp on filters fit just about any custom intake setup. Race builds, snowmobiles, generators, ATVs, you name it. The pliable rubber flange absorbs vibration and stretches up to 1 16in for in between intake sizes, so you can match the filter to the application without machining anything. Features Pliable molded rubber flange absorbs vibration Stretches up to 1 16in to fit in between sizes Washable and reusable, clean and