# Steel City 4 in. 21 cu. in. Square Box Extension Ring (531511234-20R)

**Brand:** [Steel City](https://shop.coreranger.com/brands/Steel%20City)
**Model #:** 531511234-20R
**SKU:** HD-202590489
**Price:** $5.61 · in stock
**URL:** https://shop.coreranger.com/product/steel-city-4-in-21-cu-in-square-box-extension-ring-531511234-20r-202590489

## Specifications

| Spec | Value |
|---|---|
| Shape | Square |
| Box Type | Extender |
| Material | Steel |
| Pack Size | 1 |
| Returnable | 90-Day |
| Number of Gangs | 2 |
| Product Depth (in.) | 4 in |
| Product Height (in) | 2 |
| Product Width (in.) | 4 in |
| Manufacturer Warranty | Yes |
| Metallic/Non-Metallic | Metallic |
| Certifications and Listings | UL Listed |

## Description

This 2-Gang 1-1/2 in. Square Box Ring features 8 knockouts which are sized 1/2 in. and 3/4 in. It is made of metallic materials for durability. Designed for indoor use. Less labor required to install 3/4 conduit to box.

• 4 in. square extension ring
• 1-1/2 in. depth
• Durable galvanized steel construction