2 inch x 1-1/4 inch Copper Reducing Coupling Fitting x Copper

2” x 1-1/4” Copper Reducing Coupling – For Code-Compliant Pipe Size Transitions

The 2” x 1-1/4” Copper Reducing Coupling is engineered to facilitate direct transitions between copper tube of different nominal diameters. It provides a consistent internal bore, minimizing flow disruption while maintaining structural performance in pressure and temperature-rated systems. This coupling is suitable for both new system installations and modifications to existing copper lines.

Manufactured from lead-free copper, this fitting meets national compliance requirements for potable water and hydronic systems. It is compatible with Type L and Type M copper tubing and supports full-sweat connections using standard joining procedures. Designed for professional use, it delivers dimensional consistency and corrosion resistance in service applications.

Product Features

• ✅ Machined to Tight Tolerances – Ensures full socket depth engagement and secure, uniform solder joints.
• ✅ Lead-Free Alloy – Fabricated from copper conforming to ASTM B88 and compliant with ANSI/NSF 61-G.
• ✅ Reduced Turbulence – Provides smooth flow transition between pipe sizes, minimizing pressure loss.
• ✅ Corrosion Resistance – Resilient in high-humidity environments and compatible with a wide range of water chemistry profiles.
• ✅ Compact Installation Profile – Suitable for confined space applications such as wall cavities and manifold configurations.

Installation Requirements

This reducing coupling is installed via sweat connection. Pipe ends and coupling sockets must be reamed, cleaned, and fluxed before assembly. Apply even heat to ensure full solder penetration across the joint. After installation, system integrity should be verified through hydrostatic testing. This fitting is not intended for use with thread sealants or mechanical threads.

Technical Specifications

• Size: 2” x 1-1/4” nominal
• Connection Type: Copper x Copper (Sweat)
• Material: Lead-Free Copper (ASTM B88)
• Use Case: Pressure and potable water systems in residential or light commercial construction

Application Context

Frequently used in main line-to-branch transitions, water heater installations, and retrofits where oversized distribution piping must reduce to standard supply lines. Applicable in both vertical and horizontal piping configurations. Recommended where system layout demands compact, low-profile fittings without flow interruption.

Regulatory Note

This product meets all applicable U.S. lead-free plumbing regulations and is certified for use in potable water systems across all jurisdictions requiring compliance with the Safe Drinking Water Act.

The 2” x 1-1/4” Copper Reducing Coupling is a code-compliant, high-performance solution for managing pipe diameter transitions in copper systems. Its durable construction and consistent dimensional accuracy make it a standard choice for professional installers seeking reliability in pressure-rated environments.