Compare Maximum number of 4 items selected K&N Engineering Metal Air Filter - E2021 Part #: E2021 Line: KAN K&N Engineering Metal Air Filter Manufacturer's Defect Warranty Quantity: 1 Style: Metal Height (in): 4-1/2 Inch Inside Diameter (in): 3-1/8 Inch Outside Diameter (in): 5-1/8 Inch Width (in): 5-1/8 Inch Filter Re-Oiling Amount (Oz): 0.79 Ounce Washable: Yes Frame Design: Flexible Filter Media: Cotton Gauze Pre-Oiled: Yes Pre-Screened: No Show More Show Less