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The COPPERFIT 1A1547 is a 3-inch threaded ABS DWV plug designed to cap and seal drain, waste, and vent piping systems. This plug threads directly into female-threaded ABS fittings, providing a secure, leak-resistant closure at pipe terminations, cleanout access points, or temporarily capped branch lines. At 0.15 pounds, it is lightweight and straightforward to handle during installation. Plumbers and pipefitters reach for this type of plug when closing off unused ports, completing pressure tests on DWV runs, or finishing rough-in work where a permanent cap is required.
This plug is suited for residential and light commercial drain, waste, and vent applications. It is commonly installed at cleanout terminations, stub-outs, and branch line caps in new construction and remodel work where ABS piping is specified. The threaded design allows removal and reinstallation when future cleanout access is needed, making it a practical choice over solvent-weld caps in service-access locations.
Designed as an OEM-style replacement and standard-fit plug for 3-inch female-threaded ABS DWV fittings in residential and light commercial drain, waste, and vent piping systems.
Installation is performed by licensed plumbers or qualified pipefitters working on ABS DWV systems. Shut off water supply and ensure the line is depressurized and drained before installing or removing any plug. Hand-tighten first, then use an appropriate wrench or strap wrench to bring the plug to a snug fit. Follow local plumbing code requirements, including applicable sections of the International Plumbing Code, for DWV pressure testing and cleanout placement.
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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