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RACO 207 4 in. Square Extension Ring, Welded Steel, 2-1/8 in. Deep
The RACO 207 is a 4 in. square extension ring engineered to extend the depth of an existing outlet box, adding usable interior volume for conductors, devices, and conduit connections. Built with welded steel box construction, this extension ring measures 2-1/8 in. deep and includes six 1/2 in. and six 3/4 in. knockouts for flexible conduit entry in commercial and residential wiring systems. The RACO 207 is UL Listed, giving electrical contractors a code-compliant solution for expanding box capacity without replacing the existing enclosure.
Key Features
- 4 in. Square Design: Matches standard 4 in. square box dimensions for a seamless fit when extending existing installations.
- 2-1/8 in. Deep: Adds significant interior volume to accommodate additional wiring, devices, or conduit fill.
- Welded Steel Construction: Durable welded steel box body resists deformation and provides long-term structural integrity.
- Six 1/2 in. and Six 3/4 in. Knockouts: Multiple knockout sizes support flexible conduit entry points for a variety of conduit wiring system layouts.
- No Bracket Configuration: Designed without a mounting bracket for direct box-to-box extension applications.
- Square Shape: Standard square profile compatible with common 4 in. square box and cover accessories.
Certifications & Compliance
- UL Listed
Technical Specifications
- Product Type: Steel Box
- Product Size: 4 in
- Product Depth: 2.125 in
- Product Shape: Square
- Drawn or Welded: Welded
- Bracket Type: No Bracket
- Wiring System: Conduit
- Knockouts: 1/2 in;3/4 in
- Certified Listed: UL Listed
Typical Applications
- Extending Existing 4 in. Square Outlet Boxes
- Increasing Box Volume for Additional Conductor Fill
- Commercial and Residential Conduit Wiring Systems
- New Construction and Remodel Electrical Work
- Panel and Junction Box Depth Extensions
Why RACO?
RACO extension rings are built with welded steel construction for durability on demanding jobsites, and the RACO 207 carries UL Listing so electrical professionals can specify it with confidence in code-driven installations. With a 4 in. square footprint, 2-1/8 in. depth, and six 1/2 in. plus six 3/4 in. knockouts, the RACO 207 delivers a practical, reliable way to extend existing boxes without compromising conduit routing options.
Manufacturer Resources
Spec Sheet
Product Specs
- list_batch:
- RACO-20260916
- Product Type:
- Steel Box
- Product Size:
- 4 in
- Product Depth:
- 2.125 in
- Product Shape:
- Square
- Drawn or Welded:
- Welded
- Bracket Type:
- No Bracket
- Wiring System:
- Conduit
- Knockouts:
- 1/2 in;3/4 in
- Certified Listed:
- UL Listed