Atkore Allied Tube & Conduit R...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$362.69
$343.94
Atkore Allied Tube & Conduit RCK400KON 4" Threadless Rigid Compression Coupling

Atkore Allied Tube & Conduit RCK400KON 4" Threadless Rigid Compression Coupling

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Model: RCK400KON

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

$362.69
$343.94
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4" Threadless Rigid Compression Coupling

  • Features

    • Use where conduit runs are closely spaced
    • Zinc plated to prevent corrosion
    • Neoprene gasket provides a concrete tight seal

Manufacturer Resources

Product Specs

Department:
Electrical

Allied Tube & Conduit RCK400KON – Frequently Asked Questions

1) Does the Allied Tube & Conduit RCK400KON coupling require threaded conduit ends?
No. The RCK400KON is a threadless compression coupling for 4 inch rigid conduit, so it joins plain, cut ends without threading them. That makes it the go-to when you cut rigid in the field and don't want to run a die on a 4 inch pipe.
2) Can this 4 inch compression coupling be used in a concrete pour?
Yes. A neoprene gasket in the RCK400KON makes the joint concrete tight, so it can be embedded in slab or deck pours without grout intrusion into the raceway.
3) Will this coupling work to repair a run of existing rigid conduit that is already installed at both ends?
Yes, that is the main use case. Because the RCK400KON is threadless and clamps down rather than threading on, you can cut out a damaged section of 4 inch rigid and bridge the gap without rotating either fixed end or cutting new threads.
4) Why choose a compression coupling instead of a standard threaded rigid coupling on tightly spaced conduit runs?
A threaded coupling has to be spun onto the pipe, which means you need room to rotate the conduit or you need a three-piece union. The RCK400KON compression type is made for runs that sit close together, since it clamps onto the conduit ends in place with no rotation of the pipe.
5) Is the RCK400KON coupling protected against corrosion for damp or below-grade work?
The body is zinc plated to resist corrosion, which covers typical damp interior, slab-embedded, and general commercial raceway work. Zinc plating is not the same as hot-dip galvanized or PVC-coated rigid, so for aggressive or direct-burial corrosive environments specify a coating rated for that duty.
How fast can I get the Allied Tube & Conduit RCK400KON 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 Allied Tube & Conduit RCK400KON come with a warranty?
Absolutely. The Allied Tube & Conduit RCK400KON 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 Allied Tube & Conduit RCK400KON?
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 Allied Tube & Conduit RCK400KON from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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