New old stock, factory sealed. Ships free with USPS Ground Advantage. Please see all photos and let me know if you have any questions.
DeVILBISS Air Adjusting Valve with Gauge HAV-511 180089
DeVILBISS Air adjusting valve, 1/4" NPS w/o gauge P-H-5516
DeVilbiss Air Adjusting Valve HAV-500 180005
DeVilbiss HAV500 Air Adjusting Valve
Devilbiss HAV-512 High Output Air Adjusting Valve with Gauge, 1/4 in MNPT inlet