dacor scuba equipment is no longer serviceable and should not be bought their is alot for sale for this reason gauges are ok for use but regulators should not be bought  mares did buy them out but their not makeing new parts for the old ones please remeber if its over 10 years old dont buy it dont waste your money buy us divers or aqua lung tusa and mares are very costly for service parts or buy new thanks hope this helps check out promate gear it good stuff and it holds up