Great milestone, you will be on the road soon,
Is that the requirement for a RV/vehicle or a home?Hi Alloy.
I have used small metal clamps (one every 200mm) for the gas lines. Strangely, the gas fitter who's inspecting and signing off on my work has said that the rules here require a gas shut off tap to be as close to the appliance as possible, so it can be turned off quickly in an emergency. I have installed another tap externally, where the line enters the Hab Box, and all the lines have a clear rubber hose slid over them (this was the hardest part!). I also have some fancy gauge/shutoff valves thet go between the cylinder and regulator that automatically shut off if theres a drastic pressure drop. I think that's another RV requirement here in Oz. Cheers.