Mueller Streamline COT212 Copper Tee 2.5 Inches

Product Description

The MUELLER STREAMLINE COT212 is a 2.5-inch copper tee fitting designed for joining copper tubing in plumbing and mechanical piping systems. This fitting creates a three-way branch connection, allowing a main run of pipe to split into a perpendicular outlet or to combine two flow paths into one. It is installed by licensed plumbers and pipefitters working on residential and commercial water distribution, hydronic heating, and general mechanical piping. The COT212 is made from copper, which provides reliable corrosion resistance and long service life in both hot and cold water applications.

This copper tee is suited for use in potable water supply lines, hot and cold distribution systems, hydronic radiant or baseboard heating loops, and commercial mechanical piping where a 2.5-inch branch connection is required. It is appropriate for both new construction rough-in and retrofit or repair work. The fitting is typically joined using a sweat-solder method, though solder or press-style end connections may also apply depending on the specific product configuration confirmed at time of installation.

Key Features

• 2.5-inch nominal size for high-flow residential and commercial piping runs
• Copper construction provides natural corrosion resistance in potable and hydronic water systems
• Three-way tee geometry enables straight-run branch connections in a single fitting
• Compatible with standard sweat-solder installation per IPC and IFGC code requirements
• Suitable for both hot and cold water service lines

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 2.5-inch copper tubing systems in residential and commercial plumbing and mechanical piping applications.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC standards. Shut off and drain the water supply completely before cutting into an existing line. Clean pipe ends and the interior of the fitting with emery cloth and apply flux before soldering. Avoid overheating the fitting during sweat soldering, as excessive heat can damage the copper or cause void joints.

Technical Specifications

• Size: 2.5 inches
• Material: Copper
• Connection Type: Tee (three-way branch)

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: COT212