Small Engine Fuel Feed Tube

While waiting for the delivery of some fuel feed tubing (5mm OD 3mm ID) I wondered if I could actually print some using TPU. After a very quick session on Fusion 360 I had a design for a 200mm tube and printed it successfully. It needs to be tried out but I cannot see any reason why it would not work unless it leaks due to not being entirely circular in section. Printed with a 30% infill

Ref - https://www.thingiverse.com/thing:4589166 For a replacement fuel tank bung or grommet.