NIBCO 3/8 in. Sweat X 3/8 in. D Sweat Copper Tee is a compact, three-way copper fitting designed to create a clean, reliable branch in copper water lines. Crafted from lead-free copper, this tee is built to deliver safe, durable connections for potable water systems while simplifying your plumbing projects.
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Lead-free copper construction—safe for drinking water and compliant with modern plumbing standards.
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Three sweat ends—each end measures 3/8 in. in diameter, providing a snug, soldered connection on all three branches.
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Three-way tee design—perfect for branching a small-diameter line off a main run, ideal for supply lines to fixtures, appliances, or manifolds.
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Direct, soldered installation—a permanent, leak-resistant joint when soldered with lead-free flux and appropriate copper solder.
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Trusted brand—NIBCO quality and manufacturing standards ensure consistent wall thickness and fit, reducing rework on critical plumbing runs.
Where this copper tee shines
Ideal for creating a clean branch off a copper water line in residential settings—think tying in a new sink supply, adding a fixture line to a bathroom vanity, or extending a small branch to feed an appliance. Its compact 3/8 in. sizing makes it well-suited for tight spaces where larger fittings wouldn’t fit, all while maintaining a reliable flow path through the main line and the branch.
Why choose a sweat copper tee over alternatives
- Durability: Copper joints soldered with proper flux and lead-free solder form a robust, long-lasting connection resistant to corrosion.
- Permanent solution: Sweat joints are not intended to be frequently disassembled, making them ideal for permanent plumbing runs where leaks must be avoided.
- Compatibility: Works directly with standard 3/8 in. copper tubing, aligning with common residential and light commercial piping practices.
Practical tips for a smooth installation
- Prepare pipes by cleaning and deburring to ensure a clean fit and proper solder flow.
- Apply flux evenly to the pipe end and inside the fitting socket for a clean capillary action during soldering.
- Heat evenly with a propane/ MAP torch and feed lead-free copper solder until a smooth, shiny joint forms.
- Inspect joints for complete surrounding solder coverage and test for leaks after the assembly has cooled.
Whether you’re upgrading a copper plumbing run or tackling a precise branch installation, this NIBCO copper tee delivers reliable performance, clean aesthetics, and durable, lead-free construction for safe, everyday use in potable water systems.
