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The MERIT BRASS PCMA0100 is a press-by-male-iron-pipe (MIP) adapter designed to transition between press-fit copper tubing systems and male threaded pipe connections. At 1 inch in size, this fitting allows a licensed plumber or pipefitter to make a fast, flame-free mechanical connection on one end while threading directly into a standard MIP fitting or valve on the other. Weighing 1.47 pounds, it is built for professional installation in residential and light commercial plumbing applications where reliable, leak-resistant joints are required.
This adapter is suited for use in domestic water supply systems, hydronic heating piping, and similar closed-loop plumbing configurations where a transition from press-fit copper to threaded connections is needed. It is well-suited for retrofit work or new construction where press tooling is already on site and speed of assembly is a priority. Licensed plumbers working on potable water or hydronic systems are the primary installers of this fitting type.
Designed as an OEM-style press-to-MIP transition fitting for 1-inch press copper piping systems requiring a male threaded outlet connection.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the IPC. Shut off the water supply and depressurize the line before making any connections. The press end requires a compatible press tool and appropriate jaws sized for 1-inch fittings — do not attempt to solder or sweat the press end. Apply thread sealant or PTFE tape to the MIP threads before engaging the threaded connection, and tighten to the fitting manufacturer's recommended engagement without over-torquing.
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