SEPCO 172 3/4-Inch Zinc Die-Cast Set Screw Combination Coupling

SEPCO 172 3/4-Inch Zinc Die-Cast Set Screw Combination Coupling

The SEPCO 172 is a 3/4-Inch Set Screw Combination Coupling built from durable die-cast zinc, designed to join two conduit runs into a single continuous raceway. The set-screw design bites securely into the conduit wall on each end, creating a firm mechanical connection with nothing more than a screwdriver or nut driver — no soldering, welding, or threading equipment required. As a combination-style coupling, the SEPCO 172 gives electricians and contractors a straightforward way to transition or extend 3/4-Inch conduit runs during commercial and light-industrial installations without cutting or re-threading existing conduit. Its die-cast zinc body is engineered to hold up to routine jobsite handling while keeping the fitting lightweight and easy to work with in the field.

Because it relies on mechanical set screws rather than threaded ends, the SEPCO 172 installs quickly in both new-construction and retrofit settings, making it a practical stocking item for electrical contractors, maintenance crews, and panel shops that regularly extend or repair 3/4-Inch conduit runs.

Key Features

• Trade Size: 3/4-Inch, sized to fit standard 3/4-Inch conduit runs.
• Durable Construction: Die-cast zinc body resists corrosion and holds up to jobsite handling better than lightweight stamped alternatives.
• Set Screw Connection: Set-screw hardware on the coupling secures each conduit end with simple hand tools, speeding up installation.
• Combination Coupling Design: Purpose-built to connect and extend 3/4-Inch conduit sections into one continuous, mechanically sound raceway.
• Compact, Low-Profile Body: The die-cast zinc housing keeps a slim footprint so the coupling fits cleanly alongside other conduit fittings in tight enclosures and junction boxes.
• Tool-Free-Friendly Installation: No threading, soldering, or specialty tooling is required — set screws are tightened with a standard screwdriver or nut driver for a fast field connection.
• Stocking-Grade Fitting: A single 3/4-Inch part number that covers routine conduit extension and transition needs, simplifying truck-stock and van-stock inventory for electrical contractors.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Conduit Transition and Extension Runs
• Commercial and Light-Industrial Electrical Installations
• Junction Box and Enclosure Conduit Connections
• Renovation and New Construction Wiring
• Maintenance and Repair of Existing 3/4-Inch Conduit Systems
• Panel Shop and Electrical Contractor Stock Fittings

Why SEPCO?

SEPCO builds the 172 Combination Coupling from die-cast zinc for a fitting that stands up to daily jobsite use while keeping installation simple with a set-screw connection. It's a dependable, no-frills choice for electricians who need a secure 3/4-Inch conduit connection they can trust on commercial and light-industrial projects. By keeping the design focused on a single, well-made zinc coupling rather than a complicated multi-part assembly, SEPCO gives contractors a fitting that's quick to install, easy to stock, and built to hold a solid mechanical connection for the life of the conduit run.