Nylon tubing

I have a Sullivan plastic external 1oz tank I'm going to be using. Instructions showing nylon, or brass tubing for the vent tube, angling upwards and sitting inside a little recessed area at the top of the tank. Thought I'd use the nylon tubing because it would be easier to bend, and from what I've been reading, is more resistant to nitromethane.

I tightly wrap thin iron or copper wire around brass or aluminum tubing. Tightly wrapped wire, like as a spring prevents kinks. However I didn't try this with nylon tubing, perhaps it works.

Flex cable or weedwacker line if it is the right size. A bit of heat and you should be ok.

weedwacker line worked great.