When they installed my toad system they hit an air line and they installed a quick fitting. They just cut the line and it pushes together so I went up to Napa and got a spare. I got one each 1/4 and 3/8" line size if I remember right.
2006 Country Coach Inspire 360 40ft Genoa Designer Series, Samsung 197 RR
Cat C9--STEEL & COPPER Bolt Together Radiator w/ updated rubber mounting
SilverLeaf 330 Magnum 2812 PSW 2011 Ford Edge Sport-Air Force One