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The KIT-H18021 3/4" Rigid Conduit Hub offers a vibration-proof design with a captive o-ring gasket. It requires no welding, features a Posi-Lok insulated throat (insuliner), and fits standard knockouts. This conduit hub provides easy installation and controlled thread lengths for reliable performance.
Manufacturer Resources
Product Specs
- Features:
- Vibration proof, Captive o-ring gasket, No welding, Posi-Lok insulated throat (insuliner), Fits standard knockouts, Easy installation, Controlled thread lengths
- Product Category:
- Parts & Accessories
- Product Group:
- Safety
- Product Subgroup:
- Parts & Accessories
- Product Type:
- KIT-H18021 3/4" Rigid Conduit Hub
- Series:
- Stopper® Accessories
- Product Details:
- 3/4" Rigid Conduit Hub
- Department:
- Safety
Safety Technology International KIT-H18021 – Frequently Asked Questions
1) Will the KIT-H18021 conduit hub mount in a standard knockout?
Yes. The hub fits standard knockouts, so it drops into the factory knockout on an enclosure or back box without drilling or welding.
2) Does this conduit hub seal against water getting into the enclosure?
The hub uses a captive o-ring gasket at the knockout, which is what makes the seal when the hub is drawn down. Because the gasket is captive, it stays in place during install instead of dropping out of the knockout while you are holding the box.
3) Do I need a separate bushing to protect the wire where it enters the hub?
No separate bushing is needed. The KIT-H18021 has a Posi-Lok insulated throat (insuliner) built in, so conductors pulled through bear on the insulated throat rather than bare metal thread.
4) Will this hub stay tight on equipment that vibrates?
The hub is a vibration proof design, which is why it is specified on machinery, pump and compressor enclosures where a standard locknut-and-bushing connection tends to loosen over time.
5) Is the KIT-H18021 part of the STI Stopper line of covers and enclosures?
Yes, it is an STI Stopper accessory, sold as the conduit hub used to bring 3/4 inch rigid conduit into Stopper protective enclosures and back boxes.
6) Why does thread length matter on a conduit hub like this one?
The KIT-H18021 is made with controlled thread lengths, so the hub seats to a consistent depth and leaves predictable thread inside the box. That keeps the hub from bottoming out against internal components or leaving too little thread to engage.
How fast can I get the Safety Technology International KIT-H18021 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 Safety Technology International KIT-H18021 come with a warranty?
Absolutely. The Safety Technology International KIT-H18021 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 Safety Technology International KIT-H18021?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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installation tips, and troubleshooting. Contact Us
Why buy the Safety Technology International KIT-H18021 from ZenSupply?
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