Product Description:
Octagonal galvanized steel box electrical conduit box extension ring box 

Electrical conduit octagonal box extension ring is an accessory used in electrical installations to extend the depth of an octagonal electrical box. These extension rings are also known as extension adapters or box extenders.

Octagonal galvanized steel box electrical conduit box extension ring box  Increased Box Depth: An extension ring is used to increase the internal depth of an electrical box. This added depth provides more space within the box for accommodating a larger number of wires, connectors, or devices. It is especially useful when the original electrical box is too shallow to accommodate the wiring and devices needed for a particular installation.

In some cases, electrical devices, such as outlets or switches, may have components or wiring connections that require additional space behind them. An extension ring can be added to the existing box to provide the necessary clearance for these components.

Specification:

Octagonal galvanized steel box electrical conduit box extension ring box 

•Type: Drawn
•Depth: 1-1/2" or 2 1/8"
•For surface-mounted wiring
•Made of Pre-Galvanized steel
•Thickness:0.6mm, 0.8mm,1.0mm,1.2mm,1.5mm,1.6mm
•Square box and Rectangular box are also available
•Dimension
4''*4''*1-1/2''Deep 1/2'',3/4'',1/2&3/4''
4''*4''*2-1/8''Deep 1/2'', 3/4'', 1/2''&3/4''
•Thickness:0.6mm, 0.8mm,1.0mm, 1.2mm, 1.5mm,1.6mm

Our service

1. 24 hours prompt reply by email

2. Other thickness & size also available on request

3. Free samples for your reference

4. Flexible trade term and payment term

5. Excellent after-sale service