When you have an application that requires added protection, Columbia-MBF offers Galvanized Rigid Steel Conduit (GRC, RMC). Columbia-MBF produces standard Galvanized Rigid Steel Conduit (GRC, RMC) and the patented labor-saving Rigid Kwik-Couple® alternative. To complete your raceway system, Columbia-MBF also has available Rigid Elbows, Couplings, and Nipples (ECN).

Galvanized Rigid Steel Conduit (GRC, RMC) is the heaviest weight and thickest wall of electrical conduits. Columbia-MBF’s Galvanized Rigid Steel Conduit is hot-dip galvanized for corrosion resistance and is considered non-combustible. Galvanized Rigid Steel Conduit (GRC, RMC) can be used indoors, outdoors, underground, concealed or exposed.

Galvanized Rigid Steel Conduit (GRC, RMC), when partnered with Elbows, Couplings and Nipples (ECN), delivers an Electrical Raceway System recognized as an equipment grounding conductor which provides shielding from Electromagnetic Interference (EMI). GRC conduit is a raceway solution which allows for future wiring changes and delivers remarkable mechanical protection to conductors and cables.

Columbia-MBF strives to be the leader in providing solutions and more choices for customers. In a continuing commitment to provide customers with innovative solutions, Columbia-MBF introduced Kwik-Couple® Galvanized Rigid Steel Conduit (GRC, RMC), a labor savings option with an integral Kwik-Couple® on one end. Easily line up the ends of the conduit and spin the patented Kwik-Couple® coupling. To complete your raceway system try our special order Galvanized Rigid Elbows with the Columbia-MBF Kwik-Couple® alternative.

In our pledge to deliver superior service and added- value to customers, Galvanized Rigid Steel Conduit and Rigid Elbows, Couplings, and Nipples (ECN) are part of the Atkore Electrical Raceway portfolio of products and can be co-loaded with many of our other Columbia-MBF and Atkore Electrical Raceway Products.

For a complete list of our stable of Galvanized Rigid Steel Conduit (GRC, RMC) raceway products, browse our offerings and experience the advantages of Columbia-MBF’s standard and Kwik raceway products.

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    Conduit

    Manufactured from mild steel, Columbia-MBF's Rigid Conduit is highly resistant to damage from impact yet ductile to facilitate bending.

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    Elbows

    Galvanized Rigid Steel Conduit (GRC) Elbows are interchangeable with IMC and Rigid (GRC) Steel Conduits and Kwik-Couple Conduits.

  • GRC Couplings and Nipples

    Couplings & Nipples

    Rigid steel couplings and nipples are interchangeable with IMC and Rigid (GRC) Steel Conduits and Kwik-Couple Conduits.

  • Kwik-Couple

    Kwik-Couple® GRC

    There are no separate couplings to purchase, store, carry or install. High grade durable and ductile steel for long life and corrosion resistant exterior and interior finishes.

  • Kwik-Couple Elbows

    Kwik-Couple® Elbows

    The factory installed Kwik-Couple is offered on any of the Galvanized Rigid Steel Conduit in 45°, 90° and 90° Large Radius Elbows. Can be used with GRC conduits, couplings or nipples.