American Fittings ER Concretet...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$10.44
American Fittings ER Concretetight Rigid Coupling, Electroplated Zinc Steel, Spec-Grade

American Fittings ER Concretetight Rigid Coupling, Electroplated Zinc Steel, Spec-Grade

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Model: ER100

In Stock (leaves warehouse same day if ordered before 3pm ET)

$10.44
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American Fittings ER Concretetight Rigid Coupling, Electroplated Zinc Steel, Spec-Grade

American Fittings' ER Concretetight Rigid Coupling is engineered to join lengths of rigid conduit in commercial and industrial electrical systems, and is available in trade sizes 1", 1-1/2", 2", 3", and 4" to cover a wide range of installation needs. Built from electroplated zinc steel, this industrial/specification-grade coupling delivers the corrosion resistance and mechanical strength required for demanding conduit runs, including installations where the coupling will be encased directly in concrete.

Key Features

  • Trade Size Range: Available in 1", 1-1/2", 2", 3", and 4" trade sizes to match a broad range of rigid conduit systems.
  • Durable Construction: Electroplated zinc steel construction provides long-term corrosion resistance in commercial and industrial environments.
  • Concretetight Design: Concretetight construction helps prevent concrete infiltration during pours, supporting reliable performance in direct-to-concrete conduit installations.
  • Industrial/Specification Grade: Manufactured to industrial/specification-grade standards for demanding commercial and industrial electrical projects.
  • Conduit Coupling Function: Designed to join two lengths of rigid conduit in a straight run, maintaining a continuous raceway for conductors.

Technical Specifications

  • Product Type: Conduit Coupling
  • Material: Electroplated Zinc Steel
  • Trade Sizes: 1", 1-1/2", 2", 3", 4"
  • Grade: Industrial/Specification Grade
  • Design: Concretetight

Typical Applications

  • Rigid Conduit Systems in Commercial and Industrial Facilities
  • Direct-to-Concrete and Underground Conduit Installations
  • New Construction and Renovation Electrical Projects
  • Panelboard, Feeder, and Branch-Circuit Raceway Runs

Why American Fittings?

American Fittings builds its ER Concretetight Rigid Coupling from electroplated zinc steel to withstand the rigors of industrial and commercial job sites, with a concretetight design engineered specifically for direct concrete encasement. As an industrial/specification-grade product, it's manufactured to meet the demands of professional electricians who need dependable, code-compliant rigid conduit connections across the full 1" to 4" trade size range.

Manufacturer Resources

Product Specs

list_batch:
AMF-20260917
Product Type:
Conduit Coupling
Product Material:
Zinc-Plated Steel
Product Finish:
Electroplated Zinc
Configuration:
Concretetight
Grade:
Industrial/Specification Grade
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Fittings

American Fittings ER100 – Frequently Asked Questions

1) Can the American Fittings ER coupling be encased directly in concrete?
Yes. The ER coupling is a concretetight fitting, built specifically so poured concrete cannot infiltrate the joint, which is what lets it be encased directly in a slab or used on underground runs. If your run is exposed indoors and never sees a pour, a standard rigid coupling does the same joining job without the concretetight construction.
2) Is the ER coupling for rigid conduit or for EMT?
It is a rigid conduit coupling, made to join two threaded lengths of rigid metal conduit in a straight run and keep the raceway continuous. EMT is not threaded, so for EMT you want a set-screw or compression coupling instead, not this fitting.
3) What do I order to couple two pieces of 2 inch rigid conduit in a slab pour?
Order the ER200, the 2 inch trade size of the American Fittings ER concretetight rigid coupling. It threads onto the two conduit ends and the concretetight design keeps the pour out of the joint. For a 3 inch run it is the ER300, and for 4 inch the ER400.
4) Will a zinc-plated steel coupling hold up in a damp industrial environment?
The ER body is zinc-plated steel with an electroplated zinc finish, which gives corrosion resistance for commercial and industrial conduit runs including concrete encasement. It is a steel fitting, not stainless or PVC-coated, so for continuously wet, chemically aggressive, or corrosive process areas you should be specifying a coated or non-ferrous fitting.
5) Is the American Fittings ER coupling spec grade for a commercial job?
Yes, it is built to industrial/specification grade, which is the tier electrical contractors and institutional specs normally call for on feeder and branch-circuit raceway work rather than general-purpose fittings. Sizes run 1 inch through 4 inch under the ER designation.
How fast can I get the American Fittings ER100 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the American Fittings ER100 come with a warranty?
Absolutely. The American Fittings ER100 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the American Fittings ER100?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the American Fittings ER100 from ZenSupply?
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