Fuel Filler Hose bent. This is found on all 72-73 and some 74-76 Buses. 211201125 BD
It is an approximately 330 mm long angled hose and fits buses that have a rubber hose connecting directly from the fuel filler neck.
If your Bus has a metal pipe going from the fuel filler neck toward the tank that connects to a short piece of hose, you need the short straight hose instead.