3/4" ProPress Street Male Adapter. Hard Copper Pipe is generally used for supply of hot and cold water in both commercial and residential applications. Rigid or hard copper is always soldered, crimped, or pressed as the form of connection. Copper offers a high level of resistance to corrosion, and needs fittings to get around bends and obstacles. Copper fittings also range in application. ProPress Fittings require only a smooth and clean connection area for the best press. ProPress is much faster than the general heat applications. This 3/4" ProPress Street Male adapter feature a ProPress connection, along I male threads. This fitting is ideal for the connection of appliances and hot water heaters.