The Devilbiss QC3 is a cost effective solution for any shop who does painting. The quick change desiccant filter is easy to maintain and includes the removal tool. The three-stage filtering with a.01 micron rating produces clean, oil and humidity free air resulting in outstanding paint finishes.The large filter media and long life desiccant is more effective than disposable dryers in that it covers 4x the area and has 16x more desiccant that any disposable unit. The included control valve has a gauge accurate to 160psi, bowl drain, 1/2" npt inlet valve and humidity indicator. Made in USA