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3" Raintight Compression Coupling
Features
- Blue nut eases identification
- Concrete tight
- Raintight in wet locations
- Heavy steel walls
Manufacturer Resources
Product Specs
- Department:
- Electrical
- Product Group:
- Conduit & Raceway
- Product Subgroup:
- Conduit Fittings
- Product Type:
- Conduit Coupling
Allied Tube & Conduit CKR-300KON – Frequently Asked Questions
1) Can the Allied Tube & Conduit CKR-300KON coupling be used outdoors or in a wet location?
Yes. The CKR-300KON is a raintight compression coupling, rated for use in wet locations. It is also concrete tight, so it can be poured into a slab without grout working into the joint.
2) What size conduit does the CKR-300KON compression coupling take?
It is a 3 inch coupling, joining two runs of 3 inch conduit end to end with compression nuts rather than threading.
3) When should I use a raintight compression coupling instead of a set screw coupling?
Set screw couplings are for dry indoor locations only. Once the run goes outdoors, into a damp area, or gets embedded in concrete, you need a raintight and concrete tight fitting like the CKR-300KON. The compression ring seals the joint against water and slurry; a set screw does not.
4) Is a compression coupling like the CKR-300KON strong enough for exposed commercial runs?
It is built with heavy steel walls, which is what holds up in exposed EMT runs where the conduit takes knocks or supports its own weight between straps. Compression fittings also let you make up a joint on conduit that is already in place, with no threading and no rotating the pipe.
5) Why does the Allied Tube & Conduit CKR coupling have a blue nut?
The blue nut is an identification feature. On a job with both raintight and standard compression fittings in the same bin, the blue nut tells the installer and the inspector at a glance that the concrete tight, raintight fitting was used.
6) What part number do I order for the 3 inch Allied raintight compression coupling?
Order it by Allied Tube & Conduit part number CKR-300KON. That is the 3 inch size in the CKR raintight compression coupling line.
How fast can I get the Allied Tube & Conduit CKR-300KON 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-300KON come with a warranty?
Absolutely. The Allied Tube & Conduit CKR-300KON 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-300KON?
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-300KON 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.