I built an air dryer that works great. I got the idea from a you tube video. It’s two pieces of 3 inch exhaust tube about 3 foot long mounted vertically side by side. The first is just a drip leg, it gets most of the water, the second is filled with desiccant beads that you can use over and over.
The compressed air goes into the drip leg, through the desiccant, then into the tank. I have two 220 volt compressors that start simultaneously and one 80 gallon tank. No moisture in my air now.... before it was real bad, very humid here.