⚡ Upgrade your electrical game with the Steel City extension ring — space, strength, and safety in one!
The Steel City 55151-1/2-25 is a pre-galvanized steel octagon box extension ring designed to expand wiring capacity by 15.8 cubic inches. Featuring a compact 4-inch diameter and 1.5-inch depth, it mounts easily with a screw-in installation directly on top of octagon boxes. UL listed and built from durable alloy steel, it ensures reliable, code-compliant performance for professional electrical projects.
| Material | Alloy Steel |
| Brand | Thomas & Betts |
| Color | Grey |
| Style | Compact |
| Finish Type | Steel |
| Installation Type | Screw-In |
| Item Weight | 3.2 ounces |
| Capacity | 15.8 Cubic Inches |
| Specification Met | Ul |
| Manufacturer | Thomas & Betts |
| UPC | 785991176001 |
| Global Trade Identification Number | 00785991176001 |
| Part Number | 551511/225 |
| Product Dimensions | 4 x 2 x 4 inches |
| Item model number | 55151-1/2-25 |
| Is Discontinued By Manufacturer | No |
| Size | 4-Inch Diameter, 1-1/2-Inch Deep, 15.8-Cubic Inch |
| Finish | Steel |
| Item Package Quantity | 1 |
| Measurement System | Imperial |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | One year manufacturer warranty |
E**E
Well-built extension ring. Good for lighting fixtures and Outlet boxes
This extension ring is great. It even fits 2x4 electrical metal boxes. Accepts for the latching side (back) up to #8 screws, maybe even #10. For the front side #8-32 Screws come in place, as shown.Screws are 4" apart. I needed 2" apart but couldn't find any octagon rings of this size. Still, I'm going to use these on 2x4 rectangular boxes or even 4 x 4, if necessary, so I can fit in more wire nuts and wires in a particular box.Great product, I highly recommend. Will purchase more.
S**E
Five Stars
good
S**N
As advertized
Arrived when it was supposed to and served it's purpose.
Trustpilot
2 weeks ago
1 week ago
