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The MUELLER STREAMLINE TEE00845 is a wrot copper tee fitting designed for 90-degree branch connections in pressure piping systems. It joins three sections of 1-1/2-inch copper tubing using sweat solder connections, making it a standard component in plumbing, hydronic heating, and mechanical piping installations. Wrot copper construction delivers consistent wall thickness and reliable joint integrity under sustained pressure and temperature cycling. This fitting is NSF, UL, and cUL listed, covering potable water and general plumbing applications. Plumbers and pipefitters install this tee wherever a branch takeoff is required in a copper piping run.
This tee is suited for residential and light commercial plumbing systems, including domestic hot and cold water distribution, hydronic heating loops, and mechanical room piping. The 1-1/2-inch connection size makes it a common choice for main distribution lines and branch headers. The 90-degree angle configuration supports straight tee intersections without additional offsets. Its temperature rating of -20 to 400 degrees F covers a broad range of service conditions from chilled water to high-temperature hot water systems.
Designed as an OEM-style replacement and standard-fit tee for 1-1/2-inch copper tube systems using sweat solder joints in residential and commercial plumbing and hydronic piping applications.
Installation is performed by a licensed plumber or pipefitter using standard sweat soldering tools including a torch, flux, and lead-free solder per applicable plumbing codes such as the IPC and local amendments. Shut off and drain the water supply completely before cutting into any existing piping. Tube ends and fitting sockets must be cleaned and fluxed before soldering to ensure a leak-free joint. Do not apply heat to a pressurized or water-filled line.
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