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The NIBCO INC W00990T is a lead-free copper coupling without stop, designed to connect or repair two lengths of copper tube in a sweat-solder application. The fitting features full solder cups on both ends with no internal stop, allowing it to slide freely over tubing for in-line repairs where a standard stop-style coupling cannot be seated from one end. This makes it the correct choice when a section of tube must be cut out and replaced without access to pull the pipe back. Sized at 1-1/2 inches CxC, it is installed by licensed plumbers and pipefitters working on residential or commercial water distribution, hydronic heating, and similar copper systems.
This coupling is suited for residential and light commercial plumbing systems using 1-1/2 inch copper tube. It is particularly useful during repair work where the existing pipe run is fixed in place and a slip-style coupling is required to complete the joint. The lead-free construction meets regulatory requirements for potable water service, making it appropriate for domestic cold and hot water lines as well as recirculation loops.
Designed as an OEM-style replacement and repair fitting for 1-1/2 inch copper tube systems using CxC sweat-solder connections in plumbing and hydronic applications.
Installation is performed by a licensed plumber or pipefitter using standard sweat-soldering tools including a torch, flux, and lead-free solder in accordance with local plumbing codes and the IPC or UPC as adopted. Shut off the water supply and fully drain the line before cutting and fitting. Ensure tube ends are clean, deburred, and properly fluxed before soldering to achieve a leak-free joint. Do not use this fitting with press-fit or push-to-connect systems.
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