AEM 21-2109DK Universal Dri-Flow Clamp On Air Filter Round Tapered 83mm Flange ID Height 225mm Base 152mm Top 130mmDesigned to improve horsepower and throttle response. AEM air filters are washable and guaranteed to last the life of your vehicle. Captures up to 9% of harmful pollutants. Excellent performance even in dusty race environments. Made in America. Manufacturer: K&N Engineering Brand: AEM Model Name: AEM Air Filter; 3. 25" X 9" Dryflow Product model number: 21 2109DK Discontinued by the manufacturer: No Original product number: 21 2109DK Color: Red