Above, dry cartridge adapter and filter The dry cartridge adapter was made by USM. This part is no longer being made but as I said it sure was great way up North. It was much better suited for the far North like North Dakota and Alaska. You can find out more about the air adapter in the Field Modification section. Another mod that I did was to add a top. This was a pretty nifty replica. It was made from OD vinyl and cut in a pattern pretty close to the orginals. It was only $250 and came with doors! Beachwood had a top made of canvas and I figure it would have cost me around $1000 including doors. I should have bought two of the vinyls as no one is making them for that price any more! Next