Just FYI from my own experience, dont let the compressor sit on loose gravel, dirt, or sand. Debris will get inbetween the grill slats on the body and work its way into the bottom of the crank (its open to the air). I had sand come up through the piston ring and get seated in the valve, not letting it work right.
Wasnt my filter (they stock ones are trash), I had a closed element on at the time.
Theyre real easy to take apart and clean up though!
And I converted mine over to standard air couplers too.
2012 Dodge 2500 Megacab, 6" Carli 2.65 ACV System, Yaesu 7900R Radio, Rigid Light Bar, and a host of other goodies.