Fits standard 4mm PTFE tubing. Print the flat edge on the build plate. Requires grid supports to print successfully ( I haven't tested other support styles or settings - this design and print were very much born of a “Oh s**t I need this thing like, now." situation.)

Printed in Carbon-filled PC. I'm sure other filaments would work well too, provided they're stiff enough to resist the PTFE tube.

Should fit snugly with the clip gripping the PTFE tube, but finish it off with a zip tie in the middle to keep things secure.