1-1/2 inch x 1-1/4 inch Copper Reducing Adapter Copper x Male

Contractor-Grade 1-1/2 inch x 1-1/4 inch Copper Reducing Adapter – Built for High-Performance Transitions

The 1-1/2 inch x 1-1/4 inch Copper Reducing Adapter is designed to provide a seamless reduction between copper piping sizes in potable water and hydronic systems. Fabricated from lead-free copper, this adapter supports soldered connections for secure, long-lasting joints that comply with applicable plumbing codes.

Engineered for use in systems where reliable pressure control and precise dimensional tolerances are required, this reducer offers optimal flow transition with minimized turbulence. Whether you're installing a new supply branch or modifying existing infrastructure, this fitting performs under demanding job site conditions.

Performance Highlights

• ✅ Lead-Free Copper – Manufactured to meet low-lead requirements for potable water systems.
• ✅ Sweat Connection – Compatible with standard soldering practices for strong, permanent joints.
• ✅ Dimensionally Accurate – Built to ASTM B75 and ASME standards for consistent sizing and code compliance.
• ✅ Corrosion Resistance – Suitable for use in both hot and cold water distribution systems, including hydronic heating lines.

Technical Specifications

• Material: Lead-Free Copper
• Connection: 1-1/2 inch Female Sweat x 1-1/4 inch Male Sweat
• Standards: Complies with ASTM B75, ANSI/NSF 61 & 372
• Application: Potable water, HVAC, and general copper piping systems

Typical Applications

This adapter is commonly used in branch line takeoffs, mechanical room retrofits, or where size transitions are needed in constrained spaces. It supports vertical and horizontal configurations and is suitable for both residential and light commercial copper systems.

Installation Guidance

For proper installation, clean mating surfaces thoroughly before applying flux and solder. Use only lead-free solder conforming to ASTM B813 and follow all local code guidelines. Ensure pipe and fitting alignment prior to heating to achieve uniform capillary action and full bond integrity.

Pro Insight

Copper’s high thermal conductivity and resistance to dezincification make it a reliable material in long-term potable applications. This reducing adapter allows installers to manage size changes without compromising system performance.

Choose the 1-1/2 inch x 1-1/4 inch Copper Reducing Adapter for professional-grade performance on your next project. Designed to meet stringent industry demands, it ensures durable, code-compliant transitions that stand up to the job.