What are the internal measurements of this gold tube I’m curious if the cartridge I use will fit they are 1.16” in diameter and 8.75” Long you need it to be longer as a Spring keeps it off the bottom so it won’t get in the water that can collect in the bottom of tube.my filter has a bleed valve on the bottom so while it’s under pressure I can release the air and drain any remaining moister but inorder for that to happen you need to do this before you unhook your tank."daystate395"This is what use on my air compressor. It comes with filter, but I put desiccant and 2 pieces of the filter that comes with it. I cut 2 pieces 11/2" long and put one piece on each end of filter tube and put the desiccanrt in between two filter pieces. It works, keeping the moisture from getting to my air cylinder.