High-Flow Oval Straight Air Filter 1.75in Flange K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 2.25 In, Filter Height: 4 In Flange Lengt RU-2450 Filter Available in round, tapered (cone-style), and oval designs, K&N offers thousands of clamp-on filters in a multitude of shapes and sizes that cater to many precise applications. K&N RU-2450 Oval Tapered Universal Clamp-On Air Filter Flange Dia - F: 1.75 in. , 44mm. Part Number: 599-RU-2450 Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration. K&N Universal Clamp-On Air Filter | 4-1/2 (ID) x 8-3/8 (H These versatile filters are constructed with ultra-strong molded pliable rubber flanges that absorb vibration and allow for secure attachment. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration- clogged or dirty engine air filters can reduce your vehicle’s acceleration by up to 10%