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The COPPERFIT 1A1545 is a 1.5-inch threaded ABS drain-waste-vent (DWV) plug designed to cap off open pipe ends in low-pressure drainage systems. Molded from acrylonitrile butadiene styrene (ABS), this fitting delivers solid chemical resistance and durability in residential and light commercial plumbing applications. At 0.04 pounds, it is a lightweight, single-use cap that threads directly onto standard 1.5-inch female-threaded ABS DWV fittings. Plumbers and pipefitters install this plug to terminate branch lines, seal test points, or close unused openings in drain, waste, and vent assemblies.
This plug is suited for residential drain systems, bathroom rough-ins, kitchen drain stacks, and vent line terminations where a 1.5-inch threaded closure is required. It is a common stock item for service plumbers handling DWV system testing and maintenance, as well as new construction rough-in work. The threaded design allows for removal and reinstallation without damaging the fitting.
Designed as an OEM-style replacement and standard fitting for 1.5-inch threaded ABS DWV plumbing systems in residential and light commercial construction.
Installation is performed by a licensed plumber or qualified pipefitter in accordance with the International Plumbing Code (IPC) and local jurisdiction requirements. Shut off water flow and relieve system pressure before installing or removing any DWV plug. Thread the plug by hand first to avoid cross-threading, then snug with an appropriate wrench. Do not overtighten ABS fittings, as excessive torque can crack the fitting body.
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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