K&N RX-2820: RX-2820 Round Straight X-Stream Clamp-On Air Filter
3'' (76 mm) Flange Diameter
Round Straight X-Stream Air Filter Flange Inside Diameter: 3" (76 mm) Flange Length: 0.625" (16 mm) Flange Type: Centered Height: 7" (178 mm) Base Outside Diameter: 5" (127 mm) Top Outside Diameter: 5" (127 mm)