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The NDL INDUSTRIES W1085 is a copper reducing coupling designed to connect two copper pipes of different diameters using sweat-solder (C x C) end connections. It transitions from a 2.625-inch side to a 1.375-inch side, making it a practical component in water supply, hydronic heating, and refrigeration piping systems. The all-copper construction ensures reliable performance in pressure piping applications. This fitting is installed by licensed plumbers and HVAC technicians wherever a reducer is needed to step down pipe diameter within a copper piping run.
This reducing coupling is suited for residential and light commercial plumbing and HVAC applications. It is used when a piping system requires a transition between two copper pipe sizes, such as at branch takeoffs, equipment connections, or during system modifications. The C x C end configuration requires both connection points to be soldered to copper pipe. Box quantity is 12 units per carton, making it appropriate for contractor stocking or multi-unit projects.
Designed as an OEM-style replacement or new-installation fitting for copper piping systems requiring a reducing coupling at 2.625 inches by 1.375 inches with C x C end connections.
Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off and depressurize the water or refrigerant system fully before cutting into the line. Clean and flux both pipe ends and fitting sockets before soldering; do not use excessive heat that could damage adjacent components. Allow the joint to cool fully before restoring system pressure.
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