Braided line and fittings turned up, there the same as you would use for either track type fuel systems, hydraulics, nos, etc. there abit over kill for air ride, but they should never start to leak, and are very robust. It also means that nothing is using a push to connect type fitting, and could potentially pop off. so I will have much more confidence throwing it into corners and not worrying You push the braided line in to the one end of the fitting, to do this you need to clamp the end of the fitting in a vice, and really force the braided hose inside while twisting it downwards. t