Air dryer

Look at NAPA, I have used their brand for years.
My air compressor is outside, I put a moisture trap on the inside wall where the line comes thru.
Ran the line up the corner of the wall and branched in two different directions.
Every place I have a drop for a line for an air hose, I added another moisture trap.
Drain the tank and traps every so often, because the humidity is really high here.