Gas line

M finishing up my Brutus clone and have some questions about how to supply gas to my burners. I am not going to use a gas beam like the one on Brutus, I am going to use 1/2 gas pipe. I will be using three banjo burners and high pressure propane. I will also be using a tower of power controller to control mash temp. I would like to use a flexible gas line to run from the 1/2 main line to the burner, is this possible? If so what can I use with high pressure propane?

I used something like this on mine. Mine's still a work-in-progress though, but it seemed to work fine on my initial flame test.