Nibco PRESRED11234 Copper Press Reducing Coupling

Product Description

The NIBCO PRESRED11234 is a copper press reducing coupling designed to connect two press-fit copper lines of different diameters. It transitions a 1-1/2 inch line down to a 3/4 inch line using a press x press connection on both ends, eliminating the need for open flame or soldering at the joint. Licensed plumbers and pipefitters install this fitting in potable water, hydronic heating, and commercial piping systems where speed of assembly and a clean, reliable joint are required.

This reducing coupling is suited for residential and light commercial plumbing applications where reducing pipe size between branches or fixtures is necessary. The press-fit design is compatible with standard press tooling and sealing elements, making it a practical choice for retrofit and new construction work in tight spaces or areas where torch work is restricted by code or site conditions.

Key Features

• Press x press end connections on both ends — no soldering or flux required
• Reduces from 1-1/2 inches to 3/4 inches in a single fitting
• Copper construction for corrosion resistance in water and hydronic systems
• Compatible with standard press-fit tooling and approved press sleeves
• Suitable for potable water and hydronic piping applications

Compatibility

Designed as an OEM-style press fitting replacement or new-install component for copper press piping systems with 1-1/2 inch and 3/4 inch press-compatible pipe.

Installation Notes

Installation requires a calibrated press tool with the appropriate jaw size for each end of the fitting. Shut off and depressurize the water supply before cutting into any existing line. Ensure pipe ends are clean, deburred, and fully inserted to the depth mark before pressing. Follow applicable IPC and local plumbing code requirements for press-fit copper fittings in your jurisdiction.

Technical Specifications

• Material: Copper
• Connection Type: Press x Press
• Inlet Size: 1-1/2 inches
• Outlet Size: 3/4 inches
• Fitting Style: Reducing Coupling

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: PRESRED11234