Up for sale is a two stage air vacuum system. It will pull a vacuum down to 25 microns, which is more then enough to correctly charge any system. Has fittings for R134A/R12/R22....so this work work for the older cars looking to convert to the new stuff. I bought it trying to use it then never did. But lost the receipt so I can not return it. I paid $155 for it. But willing to let it go for $120, maybe less cause cash talks. I also have a set of AC manifold gauges but it only has fittings for R134A, the newer types of systems. Will let these go for $35? So let me know guys.