STI-3104 Clear Conduit Spacer ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$36.90
STI-3104 Clear Conduit Spacer with Gaskets for Stopper II® Series

STI-3104 Clear Conduit Spacer with Gaskets for Stopper II® Series

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Model: STI-3104

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

$36.90
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The STI-3104 Clear Conduit Spacer with Gaskets is designed for Stopper II® Series covers, adding extra installation flexibility for both indoor and outdoor applications. This spacer accommodates 1/2" or 3/4" rigid conduit and includes essential sealing components for weather-resistant performance. Each kit comes with one weather gasket (STI-3002), one rigid conduit gasket (STI-3004), and an anchor packet, ensuring a secure and professional installation when paired with STI Weather Stopper models.

Key Features

  • Clear conduit spacer for Stopper II® Series covers
  • Compatible with 1/2" or 3/4" rigid conduit
  • Includes:
    • 1 x Weather Gasket (STI-3002)
    • 1 x Rigid Conduit Gasket (STI-3004)
    • 1 x Anchor Packet
  • Designed for use with STI Weather Stopper models
  • Suitable for indoor and outdoor installations

Manufacturer Resources

Product Specs

Product Group:
Safety
Product Subgroup:
Stopper Devices
Product Type:
-3104 Clear Conduit Spacer with Gaskets for Stopper II® Series
Department:
Safety

Safety Technology International STI-3104 – Frequently Asked Questions

1) What conduit size does the STI-3104 spacer accept?
The STI-3104 clear conduit spacer is built to accommodate either 1/2 inch or 3/4 inch rigid conduit, so you can run either trade size into a Stopper II Series cover without changing the spacer.
2) What comes in the STI-3104 kit, or do I need to buy the gaskets separately?
The gaskets are in the box. Each STI-3104 kit ships with one weather gasket (STI-3002), one rigid conduit gasket (STI-3004), and an anchor packet. You supply the conduit and the Stopper II cover itself.
3) Will the STI-3104 spacer fit any STI Stopper cover?
It is made for Stopper II Series covers, and specifically for pairing with STI Weather Stopper models. If the cover on your opening is from a different STI series, the STI-3104 is not the matching spacer.
4) Can the STI-3104 conduit spacer be used outdoors?
Yes, it is suited to both indoor and outdoor installations. The weather gasket and rigid conduit gasket included in the kit are what give it weather-resistant sealing, and it is intended for use with STI Weather Stopper models.
5) Why would I need a conduit spacer behind a Stopper II cover instead of mounting it flat?
The spacer stands the cover off the wall so rigid conduit can enter behind it and the wiring can be routed to the device inside. It adds installation flexibility where surface conduit is used rather than concealed wiring, which is common on block walls, parking structures, and exterior surfaces.
6) Do I get mounting anchors with the STI-3104, or do I need to supply my own?
An anchor packet is included with the kit, so the fasteners for setting the spacer come with it. Nothing about a conduit fitting or the conduit itself is included.
7) Is the STI-3104 spacer clear so I can still see the device behind it?
It is a clear spacer, so the pull station, switch, or horn behind the Stopper II cover stays visible through the assembly. That matters for facilities that need the device identifiable at a glance during a walkthrough.
How fast can I get the Safety Technology International STI-3104 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-3104 come with a warranty?
Absolutely. The Safety Technology International STI-3104 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-3104?
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-3104 from ZenSupply?
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