Meet the NIBCO Copper Reducing Coupling—a compact, solder-ready connector that makes it possible to join copper pipes of different sizes in a single, reliable joint. Built from high-quality copper, this reducing coupling delivers lasting durability, excellent corrosion resistance, and a smooth flow path for everyday plumbing tasks.
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Material you can trust: copper construction offers longevity and strong performance in typical residential and light commercial plumbing environments.
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Reduces with precision: facilitates a clean transition from one copper pipe size to another without the need for extra adapters.
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Solder-ready joint: designed for standard copper piping systems—clean ends, flux, and proper heating create a tight, leak-resistant seal.
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One piece per package: ready to install right out of the box with 1 unit in each package for straightforward projects.
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Consistent bore and fit: engineered to maintain steady flow and minimize pressure loss at the reducer.
Where this copper reducing coupling shines
Whether you’re updating an old copper run, rerouting a supply line, or stepping down to a smaller diameter in a new installation, this NIBCO reducer helps you execute the change cleanly and confidently. It’s well-suited for standard copper piping systems in a variety of settings, including kitchens, bathrooms, and utility rooms where durability and reliable joints matter most.
Ideal use scenarios
- Repairs or remodels that require transitioning from a larger copper pipe to a smaller size in tight spaces.
- New copper runs where a precise size reduction is needed without additional fittings.
- Residential and light commercial projects that rely on dependable soldered copper connections.
Installation tips for best results
- Prepare the pipe ends by cleaning and deburring for a smooth, even surface.
- Apply a compatible flux to the joint to ensure proper solder flow and bonding.
- Assemble the coupling and heat the joint evenly with a steady flame to allow solder to fill the bore and create a tight seal.
- Cool and inspect the joint for leaks before pressurizing the system.
With the NIBCO Copper Reducing Coupling, you get a dependable, purpose-built solution for transitioning copper pipe sizes. It’s a straightforward choice that aligns with standard copper piping practices and delivers peace of mind on installation day. Add this reducing coupling to your cart and streamline your next copper piping project.
