Mulberry 30273 Powdered Die Cast Aluminum 2-Gang Box Extension, 4-1/2" x 4-1/2" x 1"

Mulberry 30273 Powdered Die Cast Aluminum 2-Gang Box Extension

The Mulberry 30273 is a powdered die cast aluminum 2-gang box extension engineered to add usable depth and fill capacity to existing outlet and switch box installations. This extension ring measures 4-1/2" x 4-1/2" x 1" and delivers a 16.3-cubic-inch capacity, giving electricians and contractors the additional volume required to bring recessed boxes flush with thicker wall surfaces, such as added drywall layers, tile, or paneling, without pulling and replacing the original box. Constructed from rugged die cast aluminum with a powdered finish, the 30273 is built to withstand the rigors of commercial and residential electrical work while maintaining a precise fit over standard 2-gang box openings. Its two-gang configuration makes it a straightforward solution for extending boxes that house duplex receptacles, switches, or combination devices.

Key Features

• Footprint: 4-1/2" x 4-1/2" dimensions match standard 2-gang box openings for a secure, flush fit.
• Extension Depth: 1-inch depth adds the extra room needed to reach new wall surfaces without replacing the existing box.
• Fill Capacity: 16.3-cubic-inch volume increases usable space for conductors and devices.
• Durable Construction: Powdered die cast aluminum resists corrosion and physical wear on the job site.
• 2-Gang Configuration: Purpose-built to extend two-gang boxes housing duplex receptacles, switches, or device combinations.
• Finish: Powder-coated aluminum surface provides a clean, consistent appearance and added protection.
• Renovation-Friendly Design: Eliminates the need to demo and reinstall an entire box assembly when wall thickness increases.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Extending Existing 2-Gang Outlet and Switch Boxes
• Commercial and Residential Electrical Renovations
• Bringing Recessed Boxes Flush with Tile, Paneling, or Added Wall Surfaces
• New Construction Wall Assemblies Requiring Additional Box Depth
• Device Mounting for Duplex Receptacles and Switch Combinations
• Retrofit Projects Where Wall Thickness Has Increased Since Original Box Installation

Why Mulberry?

Mulberry's 30273 box extension is manufactured from powdered die cast aluminum, delivering the durability and dimensional accuracy that electrical professionals rely on for consistent, code-compliant box installations. The 4-1/2" x 4-1/2" x 1" footprint and 16.3-cubic-inch capacity make it a practical, cost-effective solution for adding depth and fill volume without replacing an entire box assembly. From new construction to renovation work, Mulberry's die cast aluminum box components are built to hold up to repeated handling and long-term service, giving contractors a dependable extension solution for two-gang device boxes.