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Manufacturer Resources
Spec Sheet
Product Specs
- Cubic Capacity:
- 3 Cubic Inches
- Outer Dimensions Inches:
- 10.2x5.4x5.4
- Outer Quantity:
- 25
- Standards:
- UL E2969
- Unspsc:
- 39121304 Electrical box covers
- Weight Uom:
- 35.5 lbs. per 100
- Department:
- Electrical
- Product Group:
- Boxes & Enclosures
- Product Subgroup:
- Box Covers
- Product Finish:
- Pre-Galvanized
- Product Size:
- 4-11/16 Inches
- Product Length:
- 119.063mm
- Product Details:
- Outlet Box Covers
- Product Color:
- Silver
- Product Shape:
- Square
- Product Material:
- Steel
- Product Width:
- 119.063mm
- Product Type:
- Blank Cover
Steel City 72 C 3 1/2 – Frequently Asked Questions
1) What size box does the Steel City 72 C 3 1/2 cover fit?
It's a 4-11/16 inch square cover, so it goes on a 4-11/16 inch square (1900-size) outlet box. The cover body measures 119.063mm across, which is the 4-11/16 inch dimension in metric. It will not fit a 4-inch square box; for those you need a 4-inch square cover instead.
2) Does the 72 C 3 1/2 raised cover add box volume for conductor fill calculations?
Yes. The cover is rated at 3 cubic inches of capacity, so you can add 3 cu. in. to your box volume when running NEC box fill calculations. That is the figure stamped for this cover, not an estimate.
3) Can this Steel City cover be used in a damp or unfinished area like a garage or mechanical room?
The cover is steel with a pre-galvanized finish, which gives it corrosion resistance suitable for dry and unfinished interior locations such as garages, mechanical rooms, and warehouse ceilings. Pre-galvanized is not a weatherproof rating, so for exposed exterior work use a gasketed weatherproof cover instead.
4) What is the exact part number to order this Steel City outlet box cover?
Order it as Steel City 72 C 3 1/2. That is the manufacturer part number, and it describes the 4-11/16 inch square cover with 3 cubic inches of added capacity.
5) Will the galvanized finish on this cover match the other box covers already installed in my building?
The finish is pre-galvanized steel with a silver appearance, which is the standard unfinished look used across commercial outlet boxes and covers. In exposed ceiling and utility spaces it will read the same as other galvanized Steel City boxes and covers already in place. If your existing covers are painted or powder-coated, this one will stand out.
How fast can I get the Steel City 72 C 3 1/2 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 Steel City 72 C 3 1/2 come with a warranty?
Absolutely. The Steel City 72 C 3 1/2 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 Steel City 72 C 3 1/2?
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 Steel City 72 C 3 1/2 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.