AN -6 180 Degree PTFE Hose Fitting. The PTFE reusable hose ends are easier to install than cutter-style fittings and more user-friendly. Automotive / Aerospace-quality PTFE hose end. Fitting, PTFE Hose End, 180 Degree, -6 AN Hose to Female -6 AN, Aluminum, Red/Blue, Each.