shoebox max

As a former owner of a Shoebox Max and a Freedom 8, I would recommend you getting a Wilkerson X06-02-000 filter setup for filtering the air coming out of your first stage compressor before it enters the Shoebox. For the ultimate in dry air, I would combine the Wilkerson with the high pressure output filter recommended by rnabholz in the post above. The "gold" output filter is very well made and very reasonably priced. I'm using one with a Carette and am very satisfied with it.