Steel Rigid Metal Conduit (RMC)

Your customers’ toughest environments call for steel RMC made in America at Western Tube. It’s easy to bend, cut and thread on the job, yet strong enough to withstand abuse.


Manufactured in the USA as the heaviest-gauge tubing available, RMC stands up to the most challenging physical environments. Our RMC is hot-dip galvanized and then coated in layers of chromate conversion and organic polymer for extra protection. This makes it especially strong and resistant to environmental and mechanical corrosion. A number of rigorous quality verifications must be passed — including bend and thread testing — before any RMC is approved to leave our facility.

Trade sizes: ½–6
Lengths: 10′
Compliance: UL-6, ANSI® C80.1, NEC® Article 344, and WW-C-581. All Western products are cULus listed.


Western Tube's newest product, ZI-Strut, is engineered with half-slot construction and made from quality steel. And, we co-load ZI-Strut with our complete line of steel and aluminum products. We MAKE IT eZ.


SpeedCouple, our pre-installed swivel coupling, connects RMC in half the time and cuts material costs by as much as 50%, compared with three-piece couplings.

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Color RMC

Western Tube color RMC comes in eight vibrant colors for easy differentiation of important circuits in any tough environment. The rust resistant, powder-coated finish won’t crack, flake or peel, and the UV protective coating prevents fading to ensure long-lasting performance.

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For Distributors

See how we MAKE IT eZ for you to work with us to meet your customers’ needs.

For Contractors

Learn more about all of our electrical products.


See all of our RMC resources.