You'll get a lot of answers that border on "ghetto repairs", but other than steel tubing, the ONLY route I would take for flexible lines is braided steel with AN fittings.


... GHETTO .....

THEN on the other end of the scale .... braided steel with AN's ...

MUST be nice if you have a boat-load of cash BURIED in the back yard ...

I have used NUMEROUS times ... some 3/8 alum tubing with some high quality braided black rubber hose.