I don't see why regular heater hose wouldn't work. The pilot cooling system has a 14 psi cap on it, and most automotive applications are similar to that. Now if you are into looking fancy or are worried if the hose will function in more than one axis then the high dollar may be more appropriate for you. I'm not 100% sure, but I think 5/8" hose is what I used; its about 89 cents per foot.