Nibco I015250 Dwv Flush Bushing 1-1/2 X 1-1/4 in Abs

Product Description

The NIBCO I015250 is an ABS flush bushing designed for drain, waste, and vent (DWV) piping systems. It reduces a 1-1/2 inch spigot connection down to a 1-1/4 inch hub, allowing two different pipe sizes to be joined in a flush configuration without adding unnecessary length to the assembly. Rated for a working temperature range of -40 degrees F to 180 degrees F, this fitting handles the thermal demands of typical residential and light commercial DWV service. Licensed plumbers and pipe fitters install this fitting as part of standard drain line construction and repair work.

This flush bushing is suited for residential and light commercial DWV applications where a pipe size reduction is required inline or at a fitting connection. Its spigot-to-hub end configuration allows it to slip directly into a standard hub fitting or pipe socket, keeping the transition compact. Typical scenarios include branch drain line reductions, lavatory drain assemblies, and fixture trap connections where the supply side is 1-1/2 inches and the downstream fitting or trap is 1-1/4 inches.

Key Features

• Flush bushing design reduces 1-1/2 inch spigot to 1-1/4 inch hub in a single compact fitting
• ABS (Acrylonitrile Butadiene Styrene) construction rated for DWV service
• Operating temperature range: -40 degrees F to 180 degrees F
• Spigot x hub end connections for straightforward solvent-cement installation
• Manufactured under ISO 9001:2008 quality management standards
• Lightweight at 0.03 pounds — minimal impact on total assembly weight

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and light commercial ABS DWV drain, waste, and vent piping systems using standard 1-1/2 inch and 1-1/4 inch pipe dimensions.

Installation Notes

Installation is performed by licensed plumbers following applicable local plumbing codes and IPC guidelines. Shut off any active flow in the drain line before beginning work. Use ABS-approved solvent cement and primer as directed by the cement manufacturer and local code requirements. Do not use this fitting with PVC pipe or PVC solvent cement, as material compatibility must be maintained throughout the DWV assembly.