Abi Foundry 4042 Cast Iron Spigot Plug 3 Inch

Product Description

The ABI FOUNDRY 4042 is a service weight cast iron spigot plug designed to cap or close off 3-inch drain, waste, and vent (DWV) pipe openings. Cast from domestic gray iron, this plug accepts a spigot connection and measures 3.75 inches in length. It is built to service weight specifications, making it appropriate for residential and light commercial DWV systems where a durable, corrosion-resistant plug is required. Licensed plumbers and drain contractors install this fitting during pressure testing, system isolation, or permanent line termination. Its all-iron construction holds up across the full range of DWV service temperatures.

This plug is used in cast iron DWV piping systems found in residential, multi-family, and light commercial construction. Typical applications include capping unused branch outlets, plugging lines during hydrostatic pressure tests, and permanently closing off decommissioned drain or vent runs. The spigot end inserts into a matching hub fitting, creating a secure mechanical connection. It is domestically manufactured and suited for installations governed by local plumbing codes that specify service weight cast iron fittings.

Key Features

• Service weight cast iron construction for durable, long-term DWV use
• Spigot end style for insertion into standard hub fittings
• 3-inch nominal size for common residential and commercial drain lines
• 3.75-inch length provides adequate engagement depth for secure seating
• Rated for temperatures from 32 degrees F to 212 degrees F
• Domestically manufactured in the United States

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3-inch service weight cast iron hub DWV systems.

Installation Notes

Installation is performed by a licensed plumber following applicable local plumbing codes and the International Plumbing Code (IPC). Shut off water supply and drain the affected line before installing or removing any plug. The spigot end is typically joined to the hub using lead and oakum or an approved mechanical joint method per local code requirements. Do not use this plug on pressurized water supply lines.

Technical Specifications

• Fitting Type: Plug
• Nominal Size: 3 inches
• End Style: Spigot
• Material: Cast Iron
• Length: 3.75 inches
• Temperature Rating: 32 degrees F to 212 degrees F
• Country of Origin: United States

Standard Information

• Brand: ABI FOUNDRY
• Manufacturer Part Number: 4042