Southwire MSB1G one-gang box front view for clean power and data routing
Depth-adjustable MSB1G mechanism enables flexible in-wall fit for varied spaces
Southwire MSB1G removable nail tabs support metal stud mounting
MSB1G top blocks provide secure vertical placement for home theater setups
Half-inch knockouts accommodate blue tube or PVC conduit for tidy runs
Low-voltage dividers safely separate mixed voltages within the same box
Polycarbonate construction of Southwire MSB1G for durability
Includes heavy-duty mounting screws for secure installations

Southwire

Southwire MSB1G One-Gang Box with Depth Adjustable | Heavy-Duty 42 lb Capacity

High-performance tools and home improvement made for confident daily results

$25.99

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Why customers choose TaskHolt Tools

Overview

The Southwire MSB1G One Gang Device Box with Depth Adjustable blends rugged reliability with flexible in-wall wiring for modern power and data needs. Built as a heavy-duty 42 lb capacity enclosure, it is designed to support durable, organized installations in both new builds and renovations.

Thoughtful design elements focus on safe, neat, code-friendly wiring. The box includes ½ inch knockouts for quick conduit connections and built-in wall dividers to safely separate mixed voltages within the same enclosure. This allows you to run power and data lines together without compromising organization or safety.

Flexible mounting and expanded space

Designed for both horizontal and vertical installations, the MSB1G offers removable nail tabs for metal stud mounting and top blocks for secure vertical placement. Removable interior mounting blocks increase cubic inch capacity, giving you more room for cables and connections without crowding or risk.

  • Removable interior mounting blocks expand space for cables and connectors
  • Top blocks enable secure vertical placement in tight wall spaces
  • Removable nail tabs simplify mounting on metal studs

Durable, code-ready construction

Constructed from high-impact polycarbonate and backed by UL Listing and RoHS compliance, this box is built to withstand daily use in residential or light commercial environments. Heavy-duty mounting screws are included to ensure a secure, long-lasting installation.

Additional features and benefits

  • ½ inch knockouts compatible with blue tube or PVC conduit
  • Low voltage dividers enable safe separation of mixed voltages inside the same enclosure
  • Romex Smart Electrical Box design supports modern wiring layouts

Use cases range from home theater to smart home setups. While results vary by project, the MSB1G’s combination of depth adjustability, robust mounting options, and organized cable management can help streamline installation and future upgrades without compromising safety or performance.

FAQ

Q: What mounting orientations does the MSB1G support?

A: The MSB1G supports horizontal and vertical installations, with removable nail tabs and top blocks for flexible wall mounting.

Q: Can mixed voltage be managed within a single box?

A: Yes, low voltage dividers enable safe separation of mixed voltages inside the same enclosure.

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