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The MUELLER STREAMLINE TEE00181 is a 90-degree copper tee fitting designed for soldered plumbing connections. It joins three copper lines at equal 1/2-inch connections using a standard 50/50 solder joint method. The fitting measures 1.58 inches in length, 1.13 inches in width, and 0.69 inches in height, with a lightweight construction at 0.06 pounds. It meets NSF, UL, and UR standards, making it appropriate for potable water and general plumbing systems. Licensed plumbers and pipe fitters install this type of fitting during new construction, remodel, or repair work on residential and light commercial copper piping systems.
This tee fitting is suited for residential and light commercial plumbing applications where copper pipe distribution lines require a branch connection. The equal 1/2 x 1/2 x 1/2 inch configuration makes it a common choice for supply line branches in domestic water systems, hydronic heating distribution, and similar copper piping runs. The solder-joint connection style is consistent with standard sweat-fitting practices used throughout the trade.
Designed as an OEM-style replacement or direct-install copper sweat tee for 1/2-inch copper pipe systems in residential and light commercial plumbing applications.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and fully drain the affected line before cutting and fitting. Clean all pipe ends and fitting cups thoroughly, apply flux, and sweat the joint with 50/50 solder using a torch appropriate for copper work. Allow all joints to cool completely before restoring water pressure and inspecting for leaks.
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