Originally Posted by lytning
Making your own unit must be recorded to the EPA. Always had to send in a card when I bought a new machine to register it. What happened to that?
It's not a substitute for a proper recovery unit, but an accessory for one. (Technically, dry ice could recover most refrigerants to EPA levels without the help of a pump.)
you might consider the reftec diablo. ive used the appion g5 and would say its a good machine, but the reftec is just as quick if not quicker.... plus its American made!!