Carlon Single-Gang Non-Metalli...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$11.43
Carlon RN-21-FS Single-Gang Nail-On Outlet Box 22.5 Cu In - Fast Nail Non-Metallic Box

Carlon Single-Gang Non-Metallic Outlet Box 20.5 Cu In Fast Nail PVC Construction

(No reviews yet) Write a Review

Model: RN-21-FS

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

$11.43
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Carlon Single-Gang Non-Metallic Outlet Box 20.5 Cu In Fast Nail PVC Construction

Professional Non-Metallic Electrical Box Solution

The Carlon Single-Gang Non-Metallic Outlet Box delivers reliable electrical installation performance with 20.5 cubic inch capacity and PVC construction. This blue non-metallic outlet box is designed for use with non-metallic sheathed cable in accordance with Article 314, providing professional-grade electrical box solutions for residential and commercial applications.

Professional Features & Benefits

  • 20.5 Cubic Inch Capacity: Provides ample wire capacity for standard single-gang electrical connections and devices.
  • PVC Construction: Delivers easier installation, greater performance and lower installation cost compared to traditional materials.
  • Fast Nail Design: Enables quick and secure mounting for efficient installation in wood framing applications.
  • Non-Metallic Material: Eliminates corrosion concerns and provides reliable long-term performance in various environments.
  • UL Listed: Meets UL E11461 standards ensuring safety and code compliance for professional electrical installations.
  • Article 314 Compliance: Designed and listed for use with non-metallic sheathed cable following NEC requirements.

Technical Specifications

  • Application: Designed and listed for use with non-metallic sheathed cable in accordance with Article 314 of the
  • Brand Label: Carlon / Nutek
  • Country Of Origin: United States (US)
  • Department: Electrical
  • Effective Date: 19941115
  • Idea Granular Category Code Igcc : 4433 >> Outlet box
  • Product Color: Blue
  • Product Material: Non-Metallic
  • Product Name: NON-METALLIC BOXES
  • Product Type: Outlet Boxes
  • Replacement Product Id New : 7TAA040010R0006
  • Special Functions: PVC construction for easier installation, greater performance and lower installation cost
  • Standards: UL E11461
  • Volume: 20.5 in³

Professional Applications

  • Residential Electrical Installations
  • Commercial Building Wiring
  • Multi-Unit Properties
  • Professional Offices
  • Retail Establishments
  • Light Industrial Facilities

Why Choose Carlon Quality?

Carlon delivers trusted electrical box solutions with UL E11461 listing and PVC construction designed for reliable performance. The non-metallic material and fast nail design provide professional-grade installation efficiency while meeting Article 314 compliance requirements for long-term electrical system reliability.

Manufacturer Resources

Product Specs

Application:
Designed and listed for use with non-metallic sheathed cable in accordance with Article 314 of the
Brand Label:
Carlon / Nutek
Country Of Origin:
United States (US)
Department:
Electrical
Effective Date:
19941115
Idea Granular Category Code Igcc :
4433 >> Outlet box
Product Color:
Blue
Product Material:
Non-Metallic
Product Name:
NON-METALLIC BOXES
Product Type:
Outlet Boxes
Replacement Product Id New :
7TAA040010R0006
Special Functions:
PVC construction for easier installation, greater performance and lower installation cost
Standards:
UL E11461
Volume:
20.5 in³
Product Group:
Single Gang Boxes

Carlon RN-21-FS – Frequently Asked Questions

1) How many wires can I put in the Carlon RN-21-FS single-gang box?
The RN-21-FS is a 20.5 cubic inch single-gang box. Box fill under the NEC is counted in cubic inches, so 20.5 cu in is generous for a single-gang opening and covers a switch or receptacle with several conductors plus grounds and clamps. Do the fill calculation for your conductor size, but this is at the upper end of what single-gang nail-on boxes offer.
2) Will the Carlon RN-21-FS mount to wood studs, or do I need a bracket?
No bracket needed. The RN-21-FS is a fast nail box, with the mounting nails built into the box for driving straight into wood framing on new construction. It is not a remodel or old-work box, so if you are cutting into finished drywall with no accessible stud face, you need a retrofit box with wing clamps instead.
3) Can I use a non-metallic outlet box with NM (Romex) cable and stay code compliant?
Yes. The Carlon RN-21-FS is designed and listed for use with non-metallic sheathed cable in accordance with NEC Article 314, which is the article governing boxes and conduit bodies. It carries UL listing under file E11461.
4) Is a PVC box a problem in a damp basement or garage?
Non-metallic is an advantage there. The RN-21-FS body is PVC, so there is nothing to rust or corrode the way a steel box can, and there is no need to bond the box itself since it is not conductive. Your equipment ground still lands on the device.
5) What part number do I order for the Carlon fast nail single-gang 20.5 cu in box?
Order Carlon RN-21-FS. It is branded Carlon / Nutek and made in the United States.
6) Can I standardize on this box across apartments and light commercial units?
The RN-21-FS suits residential, commercial building wiring, multi-unit properties, offices, retail, and light industrial work, so one SKU covers most single-gang switch and receptacle rough-in across a portfolio. The limit is framing: it is a nail-on box for wood studs, so metal-stud or masonry openings need a different mounting style.
7) What color is the Carlon RN-21-FS, and does it matter on the job?
Blue, which is the common trade color for Carlon non-metallic new-work boxes. Crews use it as a quick visual cue that the box is non-metallic rather than steel during rough-in inspection.
How fast can I get the Carlon RN-21-FS 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 Carlon RN-21-FS come with a warranty?
Absolutely. The Carlon RN-21-FS 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 Carlon RN-21-FS?
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 Carlon RN-21-FS 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.
!