« 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 DeVilbissAccessoriesSpray gun service kit Read more DeVilbissToolsFinish Line regulation and filtration systems Read more DeVilbissSpray gunFLG™ Read more