Electrunite® Electrical Metallic Tubing (EMT)

Simplify installation, save time, spend less

Republic Conduit's Electrunite® Electrical Metallic Tubing (EMT) is designed with the user in mind. Besides being the easiest electrical conduit to bend currently available in the marketplace, proprietary features on Republic Conduit's small-diameter EMT, such as Inch-Mark® and Guide-line®, help reduce bending and measurement errors during installation. Large-diameter sizes of Republic Conduit's EMT offer an advantage to jobs where weight is a key factor in designing an electrical wiring system. Because of its thinner walls, large EMT weighs approximately 40 percent less than similar-sized Galvite® Electrical Rigid Metal Conduit-Steel (Galvite® ERMC-S). Thinner walls also provide more than 20 percent extra interior space for wiring when compared to identically sized Galvite® ERMC-S. This, in turn, allows Republic Conduit's customers to save on shipping and overall installation costs.

Manufacturing process

Republic Conduit's EMT is manufactured from high-quality, flat-rolled steel that is uniquely formulated for its high malleability. After forming and welding, the tubes receive a satin-smooth, corrosion-resistant zinc coating courtesy of Republic Conduit's exclusive electrogalvanizing process. A final passivation layer added to the product further strengthens its corrosion-resistance properties.

Details and Specs

Features and benefits

Proprietary features

  • Easier wiring pulling and pushing: diamond-shaped I.D. pattern* and protective, slick inside coating (Silverslick®) reduce friction when pulling or pushing the wires. The Silverslick® finish remains hard and smooth in various climate conditions, protecting your conduit and your investment.
  • Accurate, time-efficient bending: Republic Conduit's EMT is Inch-Marked® and Guide-Lined®, assisting the installer in bending the conduit through a single plane and measuring without the need of a ruler, reducing cost from mistakes as well as installation time.

*Applies to ½", ¾" and 1" EMT sizes

Easy to bend - Republic Conduit's EMT is made from an exclusive steel formula designed to provide high ductility and strength. Together with Republic Conduit's superior manufacturing process geared toward exacting internal standards, the product promotes wrinkle-free bends, reduced kinking, and minimized splitting from repeated bending and straightening.

Lower life cycle cost - Republic Conduit's EMT conduit is impact-resistant, noncombustible, chemically compatible with concrete, and resists cracking, flaking and damage from severe bending. The product is adaptable and can accommodate future wiring changes or upgrades as needed over the life of the building. The physical and mechanical properties of Republic Conduit's EMT ensure that the tube has an extended shelf life, great for immediate use or storage without degradation in quality. Last, but not least, our steel conduit can also be 100 percent recycled at the end of its useful life.

System grounding and electromagnetic interference shielding - Republic Conduit's EMT not only protects people from the harmful effects of faulty wiring, but also shields any nearby electric and electronic equipment from damage by the electromagnetic fields.

Republic Conduit products are manufactured in the U.S. from domestically sourced raw materials.

Weight and dimensions*

Outside diameter tolerances
For trade size through 2” +0.005in +0.13mm
For trade size 2 ½” +0.010in +0.25mm
For trade size 3” +0.015in +0.38mm
For trade sizes 3 ½” and 4” +0.020in +0.51mm

*The values in feet/pound units are standard. The metric equivalents may be approximate. Conduit is always identified by its English or Metric Trade Size Designator.

*All sizes furnished in 10" lengths.

*Applicable length tolerance = +¼”{+6.35mm} without a coupling.

*½”, ¾” and 1” sizes of Republic Conduit’s EMT are furnished bearing the Inch-Marked® and Guide-Lined® trademarks and with diamond-knurled inside finish for easier wire pull/push.


Architects and engineers desiring to specify Republic Conduit EMT should include the following description:

Electrical conductors shall be enclosed in Electrunite EMT in accordance with the National Electrical Code (NEC). Electrical metallic tubing shall be mild steel, electrically welded, galvanized and produced to the following specifications:

  • UL standard for Electrical Metallic tubing - steel, UL797, file # E7465
  • National Electric Code, Article 358
  • American National Standards Institute C80.3
  • cUL Listing for CSA C22.2 No. 83.1-07

Third-party certifications

Republic Conduit is committed to implementing effective quality, health, safety, and environmental management systems and process. Our facilities are certified to ISO 9001:2008 (Quality), ISO 14001:2004 (Environmental), and OHSAS 18001:2007 (Safety).

*All orders are subject to Republic Conduit's Terms and Conditions, a copy of which is available upon request.