Southwire G19281-E-UPC Outlet Box Extension Ring

Product Description

The SOUTHWIRE G19281-E-UPC is a handy utility outlet box extension ring designed to add wiring capacity to existing 4-inch by 2-inch handy utility boxes. Measuring 2-1/8 inches by 4 inches by 1-7/8 inches, this extension ring provides 21 cubic inches of additional interior volume, making it suitable for installations where the original box no longer meets fill capacity requirements. It also opens access for additional conduit entries, allowing wiring runs to be extended without disturbing existing conduit or circuit wiring. Licensed electricians rely on this type of fitting during service upgrades and circuit expansion work.

This extension ring is intended for residential and light commercial electrical applications where an existing handy box must be expanded to meet NEC wiring fill requirements. It is particularly useful during renovation or retrofit work where conduit and conductors are already in place and cannot be easily relocated. The ring installs directly onto the face of a standard 4-inch by 2-inch handy utility box, restoring code-compliant capacity without requiring a full box replacement.

Key Features

• 21 cubic inch interior capacity adds fill volume to existing handy utility boxes
• Dimensions of 2-1/8 inches by 4 inches by 1-7/8 inches for direct compatibility with standard 4 x 2 handy boxes
• Provides access points for additional conduit runs and electrical conductors
• Eliminates the need to remove existing conduit boxes and wiring during capacity upgrades
• Sold individually, one extension ring per unit

Compatibility

Designed as an OEM-style replacement and add-on fitting for standard 4-inch by 2-inch handy utility outlet boxes used in residential and light commercial electrical installations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the circuit and verify absence of voltage before opening any existing box or making connections. Secure the extension ring to the existing handy box using the appropriate machine screws and confirm all conductor fill calculations comply with NEC Article 314 before closing the assembly.

Technical Specifications

• Interior Capacity: 21 cubic inches
• Dimensions: 2-1/8 inches x 4 inches x 1-7/8 inches
• Weight: 0.5 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 1
• UPC: 00751338867093

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: G19281-E-UPC