Octagon Electrical Box 4" 21 cu in. 1/2" & 3/4" Knockouts
SKU: 47020005 | Model Number: 54151SUPC

$3.99 /each
Discount Builders Supply & Hardware
In Stock
In-Store Pick-Up
Delivery Available
Description
Octagon Electrical Box 4″ 21 cu in. 1/2″ & 3/4″ Knockouts
Built for reliable old-work installations, this 4″ octagonal electrical box delivers 21 cu in. of wiring capacity in a durable, drawn-steel design. UL Listed and finished in metallic steel, it’s ideal for mounting ceiling or wall fixtures—lighting, fans and more—as well as convenience devices and outlets. Pre-formed knockouts and combo-head mounting screws make installation fast and secure.
Key Features
- Durable drawn-steel construction with metallic finish
- Generous 21 cu in. capacity accommodates multiple conductors
- Five 1/2″ and 3/4″ knockouts for flexible cable and conduit entry
- Screw-on mount for solid, stationary support
- UL Listed for peace of mind in residential and light commercial work
⚠️ WARNING: This product can expose you to Lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Product Specifications
Certification | UL Listed |
Construction | Drawn steel |
Dimension | 4″ W × 1.5″ H × 1.5″ D |
Knockout | Five 1/2″ & 3/4″ |
Material | Steel |
Model | 54151SUPC |
Mount Type | Screw-on |
Shape | Octagon |
Volume | 21 cu in. |
Work Style | Old Work |
