K&N s Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles radio-controlled cars generators snowmobiles tractors and other applications. Regardless of the angle or offset diameter of the air intake there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.