Mueller Industries 154-010 Wing Nut Test Plug 3 in

Product Description

The MUELLER INDUSTRIES 154-010 is a 3-inch wing nut test plug used to pressure-test and isolate sections of drain, waste, and vent (DWV) piping during inspection and rough-in work. The wing nut design allows hand-tightening without tools, expanding the plug body to create a seal against the pipe interior. Licensed plumbers and pipefitters install this plug to cap off open pipe ends during hydrostatic or air pressure testing before a system is placed into service.

This test plug is sized for 3-inch pipe and is suited for residential and light commercial DWV applications. It is typically used during new construction, remodel, or repair work where individual pipe sections must be isolated and tested before final inspection. The plug is installed at open pipe ends or cleanout openings to allow pressure to be built and held within the system under test.

Key Features

• 3-inch size fits standard DWV pipe openings
• Wing nut actuation allows hand-tight installation without additional tools
• Expanding plug body creates a reliable internal seal
• Designed for use during pressure testing and rough-in inspections
• Compact form factor for use in confined spaces typical in plumbing rough-in work

Compatibility

Designed as an OEM-style replacement test plug for use in 3-inch DWV piping systems. Cross-reference part number JSCT31003 may apply to compatible applications.

Installation Notes

Installation is performed by a licensed plumber in accordance with applicable plumbing codes such as the IPC or UPC. Before installing the test plug, ensure the piping system is depressurized and free of flow. Insert the plug into the open pipe end and tighten the wing nut by hand until the plug body expands firmly against the pipe wall. Do not over-tighten or use mechanical tools on the wing nut, as this may damage the plug body or pipe fitting.

Technical Specifications

• Size: 3 inches
• UPC: 032888540101

Standard Information

• Brand: MUELLER INDUSTRIES
• Manufacturer Part Number: 154-010