NIBCO 1-1/2 in. Sweat X 1-1/2 in. D Sweat Copper Repair Coupling is your trusted, permanent fix for damaged copper lines. Crafted from lead-free copper and designed for sweat-solder connections on both ends, this repair coupling delivers a clean, durable seal that restores water flow with confidence. Built for potable water systems, it’s NSF-listed and ready to perform in real-world plumbing scenarios—from basements to buried runs. Key advantages you’ll notice in the field
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Lead-free copper construction ensures safe, code-compliant connections for drinking water and reduces worry about contaminant exposure.
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Two 1-1/2" sweat ends provide a straightforward, solder-in repair for common copper runs without compression fittings.
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Underground rated capability expands where you can use it, including exterior or buried installations where a quick, reliable fix is needed.
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NSF-listed confirms suitability for potable water applications and reliable performance over time.
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High working pressure compatibility with a listed maximum of 408 (unit listed in spec) to handle typical residential and commercial water demand.
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Specified for copper pipe perfect for repairing copper mains, service lines, or branch runs without replacing entire sections.
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Compact, single-piece package simplifies inventories and on-site logistics—you get one repair coupling, ready to install.
Who this is ideal for
- Homeowners tackling a pinhole or damaged copper run and wanting a long-lasting, solder-in solution.
- Professional plumbers seeking a reliable, code-compliant repair coupling for copper piping in both indoor and underground environments.
- Property managers performing maintenance where rapid, durable copper repairs minimize downtime and service interruptions. Use cases and practical scenarios
- Repairing a leaking 1-1/2" copper line in a basement or utility room where a clean, soldered joint is preferred for durability.
- Fixing damaged copper in underground or outdoor sections, thanks to underground-rated construction that withstands environmental exposure.
- Restoring water supply to fixtures after removing a damaged segment without re-piping large sections. How this compares to alternatives
- Unlike compression fittings, this sweat-coupled repair provides a seamless, corrosion-resistant joint with fewer potential leak paths.
- Being lead-free and NSF-listed makes it a safer, code-aligned choice for potable water systems versus older, metallic replacements.
- The two-end 1-1/2" configuration matches common copper runs, reducing the need for adapters or multiple fittings. Installation overview (simple, reliable steps)
- Shut off water and drain the line where the repair will be made.
- Cut out the damaged section and deburr the copper ends for a clean, square fit.
- Clean and flux the pipe ends to prepare for soldering.
- Position the NIBCO repair coupling so both ends insert fully into the sleeves.
- Apply heat evenly with a torch and solder the joint on both ends until sealed.
- Cool, wipe away excess flux, and test the line for leaks under normal pressure.
Specifications at a glance
- Brand: NIBCO
- Product type: Copper repair coupling (sweat x sweat)
- End connections: 1-1/2" Sweat on both sides
- Material: Lead-free copper
- Underground rated: Yes
- NSF listing: Yes
- Maximum working pressure: 408 (unit as listed in spec)
- Maximum working temperature: -20 (unit as listed in spec)
- Compatible pipe material: Copper
- Package contains: 1 repair coupling This NIBCO copper repair coupling is a purpose-built solution for real-world plumbing challenges—delivering dependable performance when it matters most: returning your water system to a leak-free, durable state with a repair that stands up to daily use.