The Sigma Electric ProConnex 3/8 in. Die-Cast Zinc Duplex Connector is built for serious, long-lasting performance in dry indoor electrical installations. With a sturdy die-cast zinc body and a precise 3/8 in. diameter, this connector provides a secure, durable connection for AC, MC, and FMC/RWFMC conduit systems.
Key benefits
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Die-Cast Zinc Construction: Rugged, mechanically strong, and designed to withstand daily use in professional electrical environments.
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Conduit Compatibility: Specifically engineered to work with AC, MC, and FMC/RWFMC conduits, ensuring a reliable fit across common install types.
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3/8 in. Diameter: Standardized sizing that supports a wide range of 3/8 in. conduit applications, simplifying selection and inventory.
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Listings you can trust: UL Listed and CSA Listed, meeting established safety and performance standards for compliant installations.
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Packaging: Sold as a single unit in bagged packaging, designed for straightforward field use and just-in-time provisioning.
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Application Scope: Suited for dry location installations, making it a reliable choice for indoor panels, junction boxes, and conduit runs.
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Brand and lineage: Part of Sigma Electric’s ProConnex line, combining reputable performance with practical design for professional electricians.
Who it's for
Ideal for electrical contractors, facility maintenance teams, and seasoned DIY installers who need a dependable, code-compliant duplex connector that fits 3/8 in. systems and performs under normal indoor conditions. If you’re wiring AC, MC, or FMC/RWFMC in dry indoor spaces, this ProConnex connector is engineered to deliver consistent results.
What makes it stand out
Unlike basic plastic connectors, the ProConnex 3/8 in. duplex connector leverages durable metal construction to resist cracking and deformation over time. The die-cast zinc body provides robust mechanical protection for the end of the conduit, helping to maintain a secure grip and a clean, professional finish in your installations.
Practical usage tips: choose this connector when you need a compact, weather-independent solution for dry indoor runs, particularly in panels, boxes, and enclosed conduit paths where reliability and compliant listings matter most. Keep in your toolbox for quick, field-ready installations that align with UL and CSA expectations.
