Nibco PRESRED134 Copper Reducing Press Coupling 1x3/4 in

Product Description

The NIBCO PRESRED134 is a copper press-by-press reducing coupling designed for transitioning between 1-inch and 3/4-inch copper pipe in pressurized water systems. This fitting uses press-style connections on both ends, eliminating the need for open flame soldering during installation. It is a common component in residential and light commercial plumbing systems where tube-size reductions are required along a run. Licensed plumbers and pipefitters install this fitting using a compatible press tool and jaw set rated for copper press fittings.

This reducing coupling is suited for potable water supply lines, hydronic heating distribution, and general plumbing rough-in applications where a step-down from 1-inch to 3/4-inch copper pipe is needed. Press fittings of this type are widely used in new construction and retrofit work where torch-free installation is required by site conditions, code, or contractor preference.

Key Features

• Press-by-press end connections on both ends for torch-free installation
• Reduces from 1 inch to 3/4 inch copper tube size
• Copper construction for corrosion resistance and long service life in water systems
• Compatible with standard press tooling used for copper press fittings
• Suitable for potable water and hydronic plumbing applications

Compatibility

Designed as an OEM-style press fitting for use with standard 1-inch and 3/4-inch copper tubing in residential and light commercial plumbing systems.

Installation Notes

Installation requires a calibrated press tool with the correct copper press jaw and ring set sized for each end of the fitting. Shut off and depressurize the water supply before cutting into any existing piping. Ensure pipe ends are deburred, clean, and fully inserted to the tube stop before pressing. Work must comply with applicable local plumbing codes and IPC requirements for press-joint copper connections.

Technical Specifications

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

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: PRESRED134