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4" Raintight Compression Coupling
Features
- Concrete tight
- Heavy steel walls
- Blue nut eases identification
- Raintight in wet locations
Manufacturer Resources
Product Specs
- Department:
- Electrical
Allied Tube & Conduit CKR-400KON – Frequently Asked Questions
1) Can the Allied Tube & Conduit CKR-400KON coupling be used outdoors or in wet locations?
Yes. The CKR-400KON is a raintight compression coupling, rated for use in wet locations, so it suits exterior EMT runs, rooftops, and damp or washdown areas where a standard setscrew coupling would not hold out water.
2) What size conduit does the CKR-400KON compression coupling take?
It is the 4 inch size in Allied's raintight compression coupling line, joining two runs of 4 inch conduit with compression nuts on each end. For other trade sizes you need the corresponding CKR part, not this one.
3) Is this coupling OK to embed in a concrete pour?
Concrete tight, so it can be embedded in poured concrete without grout working into the raceway. The heavy steel walls are what let it take the pour and the rebar knocks.
4) Compression coupling or setscrew coupling for a 4 inch run?
Use compression where the raceway sees weather, washdown, or a concrete pour. The CKR-400KON is raintight and concrete tight; a setscrew coupling is a dry-location fitting only and will not hold either rating. Indoors in dry areas, setscrew is the cheaper and quicker install.
5) What is the exact part number to order the 4 inch Allied raintight compression coupling?
Order it as CKR-400KON from Atkore Allied Tube & Conduit. That is the manufacturer part number for the 4 inch raintight compression coupling with the blue identification nut.
6) Why does the Allied CKR coupling have a blue nut?
The blue nut is an identification feature. On a job with mixed fittings in a gang box or on the rack, the color tells an installer or inspector at a glance that the coupling is the raintight compression type rather than a standard concrete-tight or setscrew fitting.
How fast can I get the Allied Tube & Conduit CKR-400KON 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 CKR-400KON come with a warranty?
Absolutely. The Allied Tube & Conduit CKR-400KON 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 CKR-400KON?
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 CKR-400KON from ZenSupply?
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and
rewards on
every order.
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