Nibco PRESRED21 Copper Press Reducing Coupling 2x1 in

Product Description

The NIBCO PRESRED21 is a copper press-fit reducing coupling designed for joining two different pipe sizes without soldering or open flame. It connects 2-inch pipe on one end to 1-inch pipe on the other using a press-by-press connection style. This fitting is intended for use in plumbing and hydronic systems where a permanent, leak-tested mechanical joint is required. Licensed plumbers and pipefitters install this type of fitting in both new construction and retrofit applications where flame-free joining is preferred or required by code.

This reducing coupling is suited for residential and light commercial plumbing systems, including domestic water supply and hydronic heating piping. The press-fit connection method is common in tight spaces or fire-sensitive environments where torch work is restricted. The fitting transitions from a 2-inch line to a 1-inch line in a single connection, eliminating the need for additional adapters in a straight-run reduction.

Key Features

• Press-by-press connection on both ends — no soldering required
• Reduces from 2 inches to 1 inch in a single fitting
• Copper construction for corrosion resistance in water service
• Compatible with standard press-fit tooling used in the trade
• Suitable for flame-free installation environments

Compatibility

Designed as an OEM-style press-fit reducing coupling for copper pipe systems requiring a 2-inch to 1-inch transition in plumbing or hydronic applications.

Installation Notes

Installation is performed by licensed plumbers using a calibrated press tool with the appropriate jaw size for each end of the fitting. Shut off and depressurize the water supply line before cutting into existing pipe. Ensure pipe ends are cut square, deburred, and cleaned before inserting into the fitting. Press joints must be made with manufacturer-compatible tooling to achieve a proper, leak-free seal per applicable plumbing codes.

Technical Specifications

• Connection Type: Press x Press
• Inlet Size: 2 inches
• Outlet Size: 1 inch
• Material: Copper
• Fitting Style: Reducing Coupling

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: PRESRED21