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The NIBCO px00668g is an F1807-standard SSC poly PEX tee fitting designed for use in PEX tubing distribution systems. The tee configuration allows a branch connection off a main run, making it a core component in residential and light commercial water supply piping. Sized at 3/4 inch x 1/2 inch x 3/4 inch, this fitting connects two 3/4 inch runs to a 1/2 inch branch outlet. Licensed plumbers and pipe fitters install this type of fitting during rough-in or repair work on PEX plumbing systems.
This fitting is suited for residential potable water distribution and hydronic applications where F1807 crimp-style PEX fittings are specified. The SSC poly body construction is common in systems where metal fittings are not required or where non-metallic components are preferred. It is used in new construction and retrofit installations where a reducing branch off the main supply line is needed.
Designed as an OEM-style replacement or new-installation fitting for F1807 crimp-style PEX plumbing systems requiring a 3/4 inch x 1/2 inch x 3/4 inch tee connection.
Installation is performed by a licensed plumber following local plumbing codes and IPC guidelines. Shut off the water supply and depressurize the line before cutting into any existing pipe. Use a calibrated PEX crimp tool and the correct diameter crimp rings to secure the fitting to PEX tubing. Inspect all crimp connections with a go/no-go gauge before restoring water pressure.
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