Copperfit 1A1789 Abs Dwv Long Turn Combo Tee 3x2 in

Product Description

The COPPERFIT 1A1789 is a 3 x 2 inch ABS DWV long turn combination tee, commonly called a combo tee, designed for drain, waste, and vent piping systems in residential and light commercial construction. The long-turn geometry reduces flow turbulence compared to standard tees, making it well-suited for horizontal-to-vertical drain transitions. Fabricated from ABS (acrylonitrile butadiene styrene) thermoplastic, this fitting delivers reliable chemical resistance and impact durability in below-grade and above-grade DWV applications. Licensed plumbers and pipefitters are the primary installers of this fitting in rough-in plumbing work.

This fitting is used in ABS DWV piping systems where a 3-inch main line intersects with a 2-inch branch line in a long-turn configuration. Typical applications include bathroom drain groups, kitchen sink drain stacks, and utility room plumbing rough-ins. The combination tee pattern allows flow from both the branch and the run simultaneously, which is standard practice in residential drain-waste-vent layouts governed by the International Plumbing Code (IPC) and local amendments.

Key Features

• Long-turn sweep geometry reduces flow restriction at horizontal-to-vertical drain transitions
• 3 x 2 inch reducing configuration accommodates branch connections off a 3-inch main
• ABS thermoplastic construction resists common drain chemicals and corrosion
• Compatible with standard ABS DWV solvent-cement joining methods
• Lightweight design at 0.96 pounds simplifies overhead and wall-cavity installation

Compatibility

Designed as an OEM-style replacement and new-construction fitting for 3-inch and 2-inch ABS DWV piping systems following standard hub-and-spigot solvent-weld configurations.

Installation Notes

Installation must be performed by a licensed plumber in jurisdictions that require permits for drain, waste, and vent work. Shut off the water supply and ensure the drain system is clear before cutting into existing lines. Use ABS-rated solvent cement and primer per the manufacturer and IPC guidelines — do not use PVC solvent cement on ABS fittings. Support horizontal runs per code spacing requirements and verify slope to drain before closing the wall or floor cavity.

Technical Specifications

• Material: ABS (Acrylonitrile Butadiene Styrene)
• Pipe Size: 3 x 2 inches
• Fitting Type: Long Turn Combination Tee (Combo)
• System Type: DWV (Drain, Waste, Vent)
• Weight: 0.96 pounds
• UPC: 812042010745
• Order Increment: 1

Standard Information

• Brand: COPPERFIT
• Manufacturer Part Number: 1A1789