RACO 272 4" Octagon Concrete Ring, 3" Deep, Pack of 100

RACO 272 4" Octagon Concrete Ring, Pack of 100

The RACO 272 is a 4" octagon concrete ring built to extend an octagon outlet box up to the finished surface of a poured concrete floor. Electricians commonly set octagon boxes below the future floor line during rough-in, and this 3" deep ring bridges that gap so the box terminates flush once the concrete has cured around it. Because concrete floor pours vary in depth from job to job, having a ring that adds a full 3" of usable depth gives crews the flexibility to plan rough-in work with confidence before the slab goes down. RACO packages the 272 ring 100 to a case, which keeps per-unit handling low for electrical contractors running multiple floor box locations across a commercial or industrial concrete slab. Whether the application is a raised-floor office space, an industrial plant floor, or a multi-unit residential slab, the RACO 272 gives installers a straightforward way to keep octagon box placement consistent with the finished floor grade.

Key Features

• 4" Octagon Fit: Matches the standard 4" octagon box footprint commonly used for floor box and junction box rough-in work.
• 3" Deep Ring: Adds a full 3" of usable depth to the box assembly, letting the box sit below grade until the concrete floor is poured.
• Concrete Floor Ring Design: Purpose-built to extend an octagon box upward so the box face lands flush with the finished concrete floor surface.
• Simplifies Rough-In Planning: Provides a consistent depth reference for crews setting boxes ahead of a concrete pour, helping reduce field guesswork.
• Bulk Case Pack: Supplied 100 pieces per pack, sized for contractors running multiple floor box locations on a single job.
• RACO Manufactured: Produced under the RACO brand, a long-established name in electrical boxes, covers, and box accessories for the trade.

Technical Specifications

• Pack size (unit): 100

Typical Applications

• Concrete Floor Box Installations
• Octagon Box Depth Extensions Prior to a Concrete Pour
• Commercial and Industrial Concrete Slab Construction
• New Construction Rough-In Electrical Work
• Renovation Projects Involving Concrete Floor Sections
• Flush-Mount Floor Outlet and Junction Box Assemblies

Why RACO?

RACO concrete rings are engineered to pair with standard octagon boxes, giving electrical contractors a reliable way to hit finished floor grade on concrete slab jobs. The RACO 272's 4" octagon fit and 3" ring depth address a common rough-in challenge, and the 100-piece case pack makes it practical to stock and deploy across multiple box locations on larger projects. As part of the broader RACO box and accessory line, the 272 reflects the same attention to fit and consistency that electrical professionals rely on for code-compliant, repeatable installations.