Don't paint without a dry, moisture free air system!! The Eastwood designed desiccant dryers ensure that the compressed air flow path through the dryer is dispersed evenly through the desiccant bed. The air then passes through the intake tube and is protected by a 40 micron porous bronze element. As the desiccant reaches its maximum absorption level, the desiccant will change color (blue to pink) and will be visible through the domed sight glass. 1 Quart capacity. Max 250 psi, Max flow 15 cfm. MADE IN USA