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The MUELLER STREAMLINE COREDFTGC32 is a copper reducing coupling designed to connect a 3-inch fitting-end (Ftg) to a 2-inch copper-end (C) in pressure piping systems. This fitting allows a technician to step down pipe diameter within a run, maintaining a secure, solderable joint at both ends. The Ftg end accepts a copper tube O.D. into a socket, while the C end is sized to receive standard copper tube directly. Licensed plumbers and pipefitters install this type of fitting in water distribution, hydronic heating, and related pressure piping applications.
This reducing coupling suits residential and light commercial plumbing installations where a transition from 3-inch to 2-inch copper pipe is required. Common scenarios include branch takeoffs, riser reductions, and mechanical room piping layouts. The Ftg x C configuration means one end slips over copper tube O.D. and the other accepts copper tube I.D., giving the installer flexibility in how the fitting is positioned within the existing pipe run.
Designed as an OEM-style replacement and standard-use fitting for copper pressure piping systems requiring a 3-inch to 2-inch reducing connection with a Ftg x C end configuration.
Installation is performed by a licensed plumber or pipefitter in accordance with IPC and local plumbing codes. Shut off and depressurize the water system and drain the line before cutting or sweating any fitting. Clean all mating surfaces with emery cloth and apply flux before soldering to ensure a void-free joint. Never apply heat to a pressurized or water-filled line.
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