Arlington Industries 4-Inch Ro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.72
Arlington Industries 4-Inch Round/Octagonal Box Cover - White Paintable Plastic with Matching Screws

Arlington Industries 4-Inch Round/Octagonal Box Cover - White Paintable Plastic with Matching Screws

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Model: CP40

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

$4.72
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Arlington Industries 4-Inch Round/Octagonal Box Cover

Professional paintable plastic cover with matching screws for versatile electrical applications

Arlington Industries delivers reliable electrical box protection with this 4-inch round/octagonal box cover featuring white paintable plastic construction and matching screws. This professional-grade cover provides secure closure for standard 4-inch electrical boxes while offering the flexibility of paintable surfaces to match any d�cor or application requirement.

Professional Features & Benefits

  • 4-Inch Trade Size: Compatible with standard round and octagonal electrical boxes for versatile installation options
  • White Paintable Plastic: Durable material construction allows custom color matching while maintaining electrical safety standards
  • Matching Screws Included: Complete installation hardware ensures professional appearance and secure mounting
  • Lightweight Design: At 0.094 lbs each, provides easy handling and installation without compromising durability
  • USA Manufacturing: Made in the United States ensuring consistent quality and reliable supply chain
  • Standard Packaging: Available in 50-piece quantities for efficient project planning and inventory management

Technical Specifications

  • Box Size: 4"
  • Color: White
  • Country Of Origin: United States
  • Height: 4.750"
  • Material S : Plastic
  • Paintable: Yes
  • Standard Packaging: 50pcs
  • Trade Size: 4"
  • Unit Packaging: 50pcs
  • Weight: 0.094 lbs/each
  • Width: 4.750"

Professional Applications

  • Residential electrical installations and renovations
  • Commercial building electrical systems
  • Industrial facility electrical infrastructure
  • Institutional and educational facilities
  • Healthcare and medical facility electrical work
  • Retail and hospitality electrical projects
  • Multi-family housing electrical systems

Why Choose Arlington Industries Quality?

Arlington Industries provides dependable electrical solutions with USA manufacturing ensuring consistent quality standards. The paintable plastic construction and included matching screws demonstrate attention to both functionality and professional appearance, making this cover ideal for applications where both performance and aesthetics matter.

Manufacturer Resources

Product Specs

Box Size:
4"
Country Of Origin:
United States
Paintable:
Yes
Department:
Electrical
Product Type:
Junction Box
Product Category:
Enclosures & Boxes
Product Color:
White
Product Height:
4.750"
Product Weight:
0.094 lbs/each
Product Width:
4.750"
Product Material:
Plastic
Product Size:
4"
Product Group:
Enclosures And Boxes

Arlington Industries CP40 – Frequently Asked Questions

1) Will the Arlington CP40 cover fit a 4-inch octagonal ceiling box, or is it round boxes only?
Both. The CP40 is a 4 inch trade size cover made to close either a standard 4 inch round or a 4 inch octagonal box, which share the same two-screw mounting pattern. The cover itself measures 4.750 x 4.750 inches, so it overlaps the box opening rather than sitting inside it.
2) Do I need to buy mounting screws separately for the Arlington CP40 box cover?
No extra hardware needed. The CP40 ships with matching white screws, so a blank-off on an abandoned ceiling or wall box is a one-part order. Nothing else is required to close the box.
3) Can I paint the Arlington CP40 cover to match a ceiling or wall color?
Yes, it is a paintable plastic cover, supplied white. That is the reason property managers and GCs pick it over a stamped steel blank: you can roll it in with the ceiling or wall coat and the cover disappears instead of leaving a bright metal disc overhead.
4) Is the Arlington CP40 a plastic or metal box cover, and does that matter for the box I am closing?
Plastic, not steel. That matters in one direction: a nonmetallic cover carries no bonding path, so on a metal box the box and raceway still have to be bonded by the existing equipment grounding conductor, not through the cover. On a nonmetallic box it is a straight closure. The tradeoff you get in exchange is paintability and 0.094 lbs per piece hanging off a ceiling box.
5) Can the CP40 cover be used as a blank to close off an unused ceiling box after removing a light fixture?
That is its main use. The CP40 is a flat blank cover, so it closes an abandoned 4 inch round or octagonal box with no knockout for a fixture stem or device. If you still need to bring wiring or a device through the cover, this is the wrong part, you want a cover with the appropriate opening instead.
6) How many Arlington CP40 covers come in a box?
Standard packaging on the CP40 is 50 pieces, which is the practical unit for anyone blanking off a run of abandoned fixture boxes across a floor or a whole building rather than doing a one-off.
7) What is the Arlington part number for the 4 inch white paintable round box cover?
CP40 is the Arlington Industries part number, made in the United States. That is the number to quote for the 4 inch round/octagonal paintable plastic cover in white.
How fast can I get the Arlington Industries CP40 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 Arlington Industries CP40 come with a warranty?
Absolutely. The Arlington Industries CP40 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 Arlington Industries CP40?
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 Arlington Industries CP40 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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