Home › DeVilbiss › Accessories › In-line air adjusting valve« 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 DeVilbissAccessoriesProfessional spray gun cleaning kit Read more DeVilbissAccessoriesSpray gun service kit Read more DeVilbissToolsKBII Read more