Copperfit 1A1556 Abs Dwv Bushing 4 X 2 Inches

Product Description

The COPPERFIT 1A1556 is a 4-inch by 2-inch ABS DWV bushing used to reduce drain, waste, and vent piping from a 4-inch hub down to a 2-inch pipe. Made from acrylonitrile butadiene styrene (ABS), this fitting is designed for gravity-flow drainage systems in residential and light commercial construction. Plumbers use this bushing when transitioning between pipe sizes within an ABS DWV system, keeping the drain line flowing correctly while maintaining a watertight, solvent-welded joint. The part weighs 0.43 pounds, making it easy to handle and position during rough-in work.

This bushing is suited for drain, waste, and vent applications where a 4-inch line steps down to a 2-inch branch or fixture connection. Typical installation scenarios include bathroom rough-ins, laundry drain connections, and stack transitions in residential new construction or remodel work. It is intended for use within ABS piping systems only and should not be mixed with PVC pipe without an approved transition fitting.

Key Features

• Reduces 4-inch hub to 2-inch pipe in a single fitting
• ABS material provides impact resistance and compatibility with standard ABS solvent cement
• Designed for DWV service — drain, waste, and vent applications
• Lightweight at 0.43 pounds for easy handling during rough-in
• Single-piece construction with no fasteners required

Compatibility

Designed as an OEM-style replacement and new-installation fitting for 4-inch to 2-inch ABS DWV piping systems in residential and light commercial drain, waste, and vent applications.

Installation Notes

Installation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) or applicable local codes. Shut off water supply and verify the line is dry before cutting into an existing DWV system. Clean and dry both mating surfaces before applying ABS solvent cement, and allow full cure time before restoring flow. Do not use PVC solvent cement on ABS fittings.

Technical Specifications

• Inlet Size: 4 inches
• Outlet Size: 2 inches
• Material: ABS
• Application: DWV (Drain, Waste, Vent)
• Weight: 0.43 pounds
• UPC: 812042011162

Standard Information

• Brand: COPPERFIT
• Manufacturer Part Number: 1A1556