« 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 DeVilbissAccessoriesIn-line air filters Read more DeVilbissAccessoriesProfessional spray gun cleaning kit Read more DeVilbissAccessoriesSuction feed cups Read more