« Back to previous category In-line air adjusting valve Description Description Code: 811.HAV-501-B Fits neatly in-line at the gun air inlet Increase or decrease working pressure at the gun Calibrated up to 11 Bar (160 psi) Related products DeVilbissTrisk DeVilbissGCS – Gun cleaner unit Read more DeVilbissToolsPro Air Read more DeVilbissAccessoriesGravity feed cups Read more