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Heavy-Duty 4" Octagon Steel Extension Rings for Added Wiring Capacity & Professional Electrical Installations
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These 4" octagon steel extension rings are designed to increase the depth and wiring capacity of standard 4" octagon electrical boxes. Constructed from drawn galvanized steel, these extension rings provide durability, corrosion resistance, and reliable performance in both residential and commercial electrical installations.
The 1-1/2" deep design adds additional wiring space, while integrated conduit knockouts provide flexibility for conduit connections and wiring configurations.
FEATURES:
Designed to increase the cubic capacity of existing 4-inch octagon electrical boxes, providing additional space for wire splices, conductors, and electrical connections without replacing the original box.
Manufactured from premium galvanized steel for outstanding strength, corrosion resistance, and long-lasting durability in demanding electrical installations.
The 1-1/2-inch depth provides additional wiring volume, making it easier to meet box-fill requirements while accommodating larger wire bundles and devices.
Available with various conduit knockout options, allowing flexible conduit routing for different electrical installation requirements.
Designed to mount directly onto standard 4-inch octagon boxes, providing a quick and secure way to expand wiring capacity while maintaining a professional finish.
Perfect for ceiling-mounted lighting fixtures, junction boxes, and conduit installations in residential, commercial, and light industrial projects.
It is used to increase the wiring capacity of an existing 4-inch octagon electrical box, providing additional space for conductors, wire splices, and electrical connections.
The extension ring is manufactured from heavy-duty galvanized steel, offering excellent durability, strength, and corrosion resistance.
The 1-1/2-inch depth adds extra cubic capacity, helping accommodate additional wiring while meeting electrical box-fill requirements.
Yes. They are available with multiple conduit knockout configurations to support a variety of conduit sizes and installation layouts.
They are ideal for residential, commercial, and industrial electrical installations, including ceiling lighting fixtures, junction boxes, and conduit systems where additional wiring capacity is required.
