Mulberry 11203 4" Square Box C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$88.44
Mulberry 11203 4" Square Box Cover with 1/2" Knockout, Pack of 100

Mulberry 11203 4" Square Box Cover with 1/2" Knockout, Pack of 100

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Model: 11203

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

$88.44
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Mulberry 11203 4" Square Box Cover with 1/2" Knockout

The Mulberry 11203 is a 4" square box cover engineered to close, protect, and finish standard 4" square electrical boxes used throughout residential, commercial, and industrial wiring systems. Identified by the CV52FK cover designation, this cover is sized precisely to a 4" square opening and includes a factory 1/2" knockout that gives electricians a controlled entry point for conduit or cable runs without compromising the rest of the cover surface. Whether used to cap an unused box during rough-in or to provide a finished surface where a 1/2" knockout entry is required, the Mulberry 11203 delivers a dependable, purpose-built fit. Its straightforward design supports fast installation and helps keep job sites organized and code-conscious from rough-in through final trim. It's an efficient way to standardize box coverage on multi-box jobs, ensuring every 4" square location is protected and ready for trim-out.

Key Features

  • 4" Square Fit: Sized to match standard 4" square electrical box openings for a clean, flush cover installation.
  • 1/2" Knockout: Includes a pre-scored 1/2" knockout that lets electricians open only the entry point they need for conduit or cable.
  • CV52FK Cover Design: Carries the CV52FK cover designation, matched specifically to 4" square box applications.
  • Simple Attachment: Straightforward mounting to 4" square boxes speeds up rough-in and reduces finish-work time.
  • Box Protection: Seals the box opening to help keep debris, dust, and moisture out prior to device or fixture installation.
  • Consistent Sizing: Uniform 4" square dimensions provide a predictable fit across multiple box locations on the same job.
  • Versatile Use: Suited to residential, commercial, and industrial electrical box applications wherever a 4" square cover is required.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • 4" Square Junction Box Covers
  • Residential and Commercial Wiring Installations
  • New Construction and Remodel Electrical Rough-In
  • Conduit and Cable Entry Points via 1/2" Knockout
  • Temporary Box Protection Prior to Device Installation
  • Industrial and Commercial Panel and Box Finishing

Why Mulberry?

Mulberry electrical products are built to match standard box dimensions precisely, and the 11203 cover is no exception, offering a dependable 4" square fit paired with a functional 1/2" knockout for on-site flexibility. Choosing a purpose-fit cover like the Mulberry 11203 helps electrical contractors maintain clean, code-conscious rough-in work while keeping installation simple and efficient. Its precise dimensions and knockout placement reduce field guesswork, saving install time across multi-box jobs.

Manufacturer Resources

Mulberry Full Line Catalog

Product Specs

list_batch:
MUL-20260919
Product Type:
Blank Cover
Configuration:
4" Square
Department:
Electrical
Product Subgroup:
Box Covers
Product Size:
4"
Pack size (unit):
100
Product Group:
Boxes & Enclosures

Mulberry 11203 – Frequently Asked Questions

1) Will the Mulberry 11203 cover fit a standard 4 inch square electrical box?
Yes. The Mulberry 11203 is sized to the standard 4 inch square box opening, so it closes off any 4 inch square junction or device box flush. It will not work on a 4-11/16 inch box or a 4 inch octagon box, which use their own cover sizes.
2) Does the Mulberry 11203 cover come with a conduit entry, or is it a blank cover?
It is not a blank. The 11203 comes with a factory 1/2 inch knockout, pre-scored so you open it only when you need a conduit or cable entry through the cover. Leave it in place and the cover acts as a blank to cap a box during rough-in.
3) I need a cover for a three-gang switch box, not a 4 inch square box. What should I order instead of the Mulberry 11203?
Order the Thomas & Betts 3-GCS instead. It is a flat 3-gang switch box cover in pre-galvanized steel, matched to a three-gang switch box opening. The Mulberry 11203 is sized to a 4 inch square box and will not cover a three-gang switch box.
4) What is the difference between the Mulberry 11203 cover and the Steel City 3-GCS cover?
They close different box openings. The Mulberry 11203 is a 4 inch square box cover with a factory 1/2 inch knockout, sized to a standard 4 inch square electrical box and carrying the CV52FK cover designation. The Thomas & Betts 3-GCS is a flat 3-gang switch box cover in pre-galvanized steel, made for a 3-gang switch box rather than a 4 inch square box. If the box in the wall or ceiling is a 4 inch square, the 11203 is the matching cover; if it is a three-gang switch box, the 3-GCS is the one that lands on the ears.
5) What is the CV52FK cover number on the Mulberry 11203?
CV52FK is Mulberry's cover designation for this part, matched to 4 inch square box applications. If a drawing or a takeoff lists CV52FK, the Mulberry part number to order is 11203.
6) Can I use the Mulberry 11203 to protect open boxes during rough-in before devices go in?
That is one of its normal uses. Mounted on the box it seals the opening against dust, debris, and moisture until the device or fixture is installed, and the 1/2 inch knockout stays closed until you need it. Covers come 100 to a pack, enough to cap a full floor of boxes at once.
7) Is the Mulberry 11203 a flat cover or a raised device ring?
It is a flat box cover, not a mud ring or raised plaster ring. It closes and finishes the box surface and gives you a 1/2 inch knockout for a conduit or cable run; it does not provide device mounting depth for a switch or receptacle.
8) If I want a cover with no opening in it at all, is the Mulberry 11203 the right pick?
The Mulberry 11203 includes a pre-scored 1/2 inch knockout, so it ships with a controlled entry point you can open for conduit or cable; left unopened it still closes the box. The Thomas & Betts 3-GCS is a flat switch box cover, a different style of closure for a 3-gang switch box. For a 4 inch square box where you may later want a 1/2 inch entry, the 11203 keeps that option without cutting the cover in the field.
9) For standardizing covers across a multi-box job, how do the Mulberry 11203 and the Steel City 3-GCS fit together?
They cover two different box types, so a job with both will use both. The Mulberry 11203 handles every 4 inch square location with uniform 4 inch dimensions for a predictable fit, and comes in a pack of 100 for multi-box work. The Thomas & Betts 3-GCS covers the 3-gang switch box positions. Counting your 4 inch square boxes against your 3-gang switch boxes tells you the split.
How fast can I get the Mulberry 11203 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 Mulberry 11203 come with a warranty?
Absolutely. The Mulberry 11203 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 Mulberry 11203?
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 Mulberry 11203 from ZenSupply?
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