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Southwire New and Old Work 21 cu in Square Galvanized Steel Electrical Box Silver
Southwire New and Old Work 21 cu in Square Galvanized Steel Electrical Box Silver

Southwire New and Old Work 21 cu in Square Galvanized Steel Electrical Box Silver

Handles new construction or retrofit wiring jobs with rust-resistant galvanized steel and room for multiple connections.
Southwire MPN 52151-FS-UPC
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Southwire item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

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About Product Overview

This square steel electrical box from Southwire handles both new construction and old work retrofits, so it fits whether you're wiring a room from scratch or cutting into existing drywall. Galvanized steel construction resists rust, and the 21 cubic inch capacity gives you enough room for switches, receptacles, or junction connections without crowding wires. It's UL Listed for code compliance on residential and light commercial jobs.

  • Galvanized steel, square shape, silver finish
  • 21 cubic inch capacity
  • Suitable for new work and old work installations
  • UL Listed
  • Dimensions: 7.1" H x 4.3" W x 1.5" D

The Details Specifications

Brand Southwire
Model / MPN 52151-FS-UPC
UPC 032886302060
Weight 1 lbs
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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