Century Sales Manufacturing, a part of American-De Rosa Company, provides a range of brass plumbing parts for the plumbing industry. It designs, engineers and manufactures proprietary and general use parts. The company offers brass pipe fittings, aerator adaptors, valves, air cocks, compression nuts and connectors. In addition, Century Sales Manufacturing provides plugs, couplings, garden hoses and hose caps. It also offers an online product catalog.