Oct 7, 2015 #1 L l3lue Member Joined Jun 19, 2005 Messages 216 I bought a GN and do not know if it's been converted, it has cold air so I would assume its R134A but is there anyway to tell??
I bought a GN and do not know if it's been converted, it has cold air so I would assume its R134A but is there anyway to tell??
Oct 7, 2015 #2 R regan j Active Member Joined Sep 19, 2008 Messages 759 Look at the fittings, 12 has threads and 134 does not.