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The MUELLER INDUSTRIES 2929 is a 3-inch ABS DWV adapter fitting used in drain, waste, and vent systems where a permanent, solvent-welded joint is required. This adapter features a plastic-to-male end configuration, allowing plumbers to transition or extend ABS pipe runs without sacrificing joint integrity. It is rated for non-pressurized gravity-flow drainage applications only, which is the standard operating condition for residential and commercial DWV piping. The fitting is constructed entirely of ABS DWV material, making it lightweight and resistant to the corrosive conditions typical in drain and waste service.
This adapter is suited for residential and light commercial DWV installations where 3-inch drain or vent lines are tied together or extended. Typical applications include connecting horizontal drain runs, joining vent stacks, or adapting between pipe sections during new construction or renovation work. The plastic-to-male configuration makes it a straightforward choice when a threaded male outlet is needed at a transition point in an ABS system.
Designed as an OEM-style replacement or new-installation fitting for 3-inch ABS DWV piping systems in residential and commercial drain, waste, and vent applications.
Installation of this fitting should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Before beginning work, shut off all water supply to the affected drainage zone and ensure the line is clear of flow. Use appropriate ABS solvent cement on both the fitting socket and pipe end, and allow full cure time before restoring flow. This fitting is not rated for pressurized service and must not be used outside of gravity-flow DWV applications.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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