Considering its age, you should consider this very good condition US Divers AQUA-LUNG AQUA-MASTER double hose regulator. Whether you actually use it or collect it for display purposes, it will be a wonderful addition. serial #392994. The regulator is very shiny and the hose appears to have no cracks in the rubber. You won't be disappointed in this offering. Shipping via USPS only thanks for looking!