SPD PTFE AN fitting. If you use Ethanol or Methanol as fuel you should use PTFE fittings and hose to have a 100% reliable fuel system. SPD AN fittings have the absolute highest quality available. All AN fittings are hard anodized, making them highly wear resistant. The AN fittings can be used with all fuels avalible like gasoline, methanol, ethanol and diesel. They are also suitable for use in water, air and oil systems. These PTFE AN fittings is compatible with steel braided AN hose with PTFE core. They are not compatible with regular AN hose (rubber core) which is used with regular AN fittings. Select from the dropdown menu what color combination you want. Solid black Black-Red Black-Gold Black-Purple Browse the various images to to see how different color options look. We offer a full 5-year warranty on all SPD AN connections.