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The NIBCO I175350 is a 3-inch drain, waste, and vent (DWV) end cap fitting manufactured from Acrylonitrile Butadiene Styrene (ABS). It is designed to terminate the open end of a DWV piping run, sealing the line to prevent flow, contamination, or pressure loss during testing and permanent installation. The hub connection type accepts standard pipe ends for solvent-cement joining. This fitting handles a working temperature range of -40 degrees F to 180 degrees F, making it suitable for typical residential and light commercial DWV applications. Licensed plumbers and pipefitters are the primary installers of this component.
This end cap is used in DWV systems where a pipe branch or main run requires a permanent or temporary termination point. Common applications include capping unused branch outlets, closing off lines during rough-in inspections, and finalizing DWV stack assemblies. The ABS material is widely used in residential drain and vent piping due to its light weight and chemical resistance to typical household waste streams. It is produced under ISO 9001:2008 quality management standards.
Designed as an OEM-style replacement and standard-use fitting for 3-inch ABS DWV piping systems in residential and light commercial plumbing applications.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off water supply and verify the line is depressurized before fitting installation. For hub connections, use ABS-rated solvent cement applied per the cement manufacturer instructions and allow full cure time before pressurizing the system. Do not use this fitting on pressurized supply lines or applications exceeding the rated temperature range.
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