Flange will bolt to your fuel cell to permit attachment of a 1.5" I.D. filler hose, The fill tube comes off of the flange at a 90-degree angle, Features a laser-etched center mark which allows you to easily locate and attach a fuel level sending unit, Manufactured from top-quality materials and are available in two sizes to best suit your application, There are a total of 12 mounting holes on a 5.38" bolt circle.