The DeVilbiss HAV500 Air Adjusting Valve is a high-quality air tool accessory designed by the trusted brand DeVilbiss. This valve, with manufacturer part number HAV500, is lightweight at 0.29 pounds, making it easy to handle and store for automotive maintenance and repair. Its durable construction and precise adjustment capabilities make it a valuable addition to any mechanic's toolkit, ensuring optimal performance and efficiency when working with air tools.