STI-HK3 Heater Field Replaceme...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$719.43
STI-HK3 Heater Field Replacement Kit for STI-1200A-HTR

STI-HK3 Heater Field Replacement Kit for STI-1200A-HTR

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Model: STI-HK3-PARTS

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

$719.43
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The STI-HK3 Heater Field Replacement Kit is designed for STI-1200A-HTR, providing a reliable replacement solution.

Manufacturer Resources

Product Specs

Compatible Model:
STI-1200A-HTR
Product Category:
Parts & Accessories
Product Group:
Safety
Product Subgroup:
Mounting & Accessories
Product Type:
-HK3 Heater Field Replacement Kit for -1200A-HTR
Series:
Stopper II®
Product Details:
Heater Field Replacement Kit
Department:
Safety

Safety Technology International STI-HK3-PARTS – Frequently Asked Questions

1) What does the STI-HK3 kit actually replace?
The STI-HK3 is a heater field replacement kit, meaning it supplies the heater element assembly for an STI Stopper II housing that was originally ordered with the heater option. You install it in the field rather than replacing the whole cover.
2) Which STI housing is the HK3 heater kit compatible with?
The HK3 kit is specified for the STI-1200A-HTR, the heated version of that Stopper II cover. If your existing cover is a non-heater model, this kit is not the matching service part for it.
3) Can I add the HK3 heater to a standard non-heated STI Stopper II cover to make it outdoor-rated?
Treat the HK3 strictly as a service part for the STI-1200A-HTR, not as an upgrade kit for a standard cover. It is catalogued against that one heated model. If you need a heated cover on an opening that currently has a non-heated one, order the heated housing itself rather than this kit.
4) Do I have to pull the whole STI cover off the wall to replace a failed heater?
No. The HK3 is sold as a field replacement kit, so the heater is serviced in place on an installed STI-1200A-HTR rather than returned or swapped as a complete enclosure. That matters for facilities crews maintaining pull station or call point covers in cold or outdoor locations.
5) Is there more than one version of the STI-HK3 to choose from?
One configuration only. The HK3 heater kit ships as a single model with no finish, size, or voltage options to specify, so ordering is just a matter of confirming the host cover is the STI-1200A-HTR.
How fast can I get the Safety Technology International STI-HK3-PARTS 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 STI-HK3-PARTS come with a warranty?
Absolutely. The Safety Technology International STI-HK3-PARTS 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 STI-HK3-PARTS?
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 Safety Technology International STI-HK3-PARTS 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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