what kind of air bags are those?
Just google phneumatic air line fittings? Some good basic sites to look at are McMasterCarr, Grainger, PArker hannifin. Eddie does not really sell a variety of air fittings, couplings, etc to make a custome air suspension. Also google custom air suspension components. There are companies out there selling components. the components like fittings and couplings are the same tyes used in industrial automation. There is a ton of stuff out there.