These Shorter "Classic-series" Air Filters are designed to be as compact as possible to fit in tight spaces. Filter Size: -----------Cone Diameter 5" O.D. Inlet Diameter 4" I.D. Filter Height 3-5/8" Overall Height (including inlet neck) 4-1/4" Filter Cap Color Black Vibrant's "THE CLASSIC" Performance Air Filters feature a premium 4-Ply cotton-gauze filter elements that provide significantly more airflow than a stock filter while providing excellent filtration of airborne dirt and other particulate that could damage your motor. These filters come pre-oiled and are washable and reusable (for maximum benefit, it's recommended to clear these filters every 1,-15, miles)