Used U.S. Divers regulator for sale. The exterior is in good condition with no major scratches. Air delivery is not an issue. Please purchase if you are able to perform periodic adjustments and overhauls. The high-pressure port is open. Please check the condition in the images. Sold as is. This item is for underwater use, and I am not responsible for its use after the sale. Please consider purchasing only if you understand how to use it and can receive timely advice. Shipping will be via Takkyubin (Japanese courier service). Please refrain from price negotiations.