Arlington Industries 1309 Reducing Bushing

Arlington Industries 1309 Reducing Bushing, 4" x 3-1/2", Red

The Arlington Industries 1309 Reducing Bushing is engineered to transition a larger 4" conduit, knockout, or enclosure opening down to a 3-1/2" trade size, giving electricians a straightforward way to install smaller conduit into a larger existing opening without swapping the box or enclosure. Finished in red for fast visual identification on the job, the 1309 bushing is built to be dropped into panelboards, junction boxes, and enclosures wherever a 4" x 3-1/2" size reduction is required. As part of the Arlington Industries reducing bushing lineup, model 1309 is sized specifically for this 4" x 3-1/2" transition and is intended for use by licensed electricians and contractors on commercial, industrial, and residential projects. This is a simple, purpose-built component for keeping conduit runs properly sized at box and enclosure openings.

Key Features

• Trade Size Reduction: Steps a 4" conduit, knockout, or enclosure opening down to a 3-1/2" trade size for flexible conduit and cable transitions without replacing the box.
• Reducing Bushing Design: Allows a smaller 3-1/2" conduit or fitting to be securely seated into a larger 4" opening while maintaining a clean, finished transition.
• Red Finish: Molded in red for fast visual identification of the 4" x 3-1/2" size transition during installation, inspection, and future service work.
• Model 1309: Part of the Arlington Industries reducing bushing family, sized specifically for 4" x 3-1/2" applications.
• Simple Installation: Designed to install quickly into an existing 4" opening, helping reduce labor time on panel, box, and enclosure work.
• Arlington Industries Quality: Backed by Arlington Industries, a manufacturer of electrical fittings and conduit accessories for professional installations.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Conduit and Knockout Size Transitions
• Panelboard and Enclosure Knockouts
• Junction Box and Electrical Box Installations
• Commercial and Industrial Electrical Installations
• New Construction and Retrofit Wiring
• Conduit Runs Requiring a 4" to 3-1/2" Transition

Why Arlington Industries?

Arlington Industries is a recognized manufacturer of electrical fittings and conduit accessories used by electricians and contractors across commercial, industrial, and residential projects. The 1309 Reducing Bushing extends that reputation to size-transition applications, giving installers a dependable 4" x 3-1/2" solution for adapting conduit and knockout openings without compromising the fit or finish of the box or enclosure. Its red-finished body makes the size transition easy to spot on the job, helping crews confirm conduit sizing quickly during rough-in and final inspection. For contractors who need a fast, reliable 4" x 3-1/2" transition, the 1309 Reducing Bushing is a straightforward, job-ready solution. Choosing Arlington Industries components like the 1309 Reducing Bushing helps ensure consistent, reliable results across your electrical installation.