Carlon 1-Gang 21 cu. in. Non-Metallic Wall Box with Adjustable Bracket-B121ADJ - The Home Depot


Model # B121ADJ

Internet # 202077339

Store SKU # 208653

1-Gang 21 cu. in. Non-Metallic Wall Box with Adjustable Bracket

Carlon 1-Gang 21 cu. in. Non-Metallic Wall Box with Adjustable Bracket

This item has been discontinued.
The Home Depot no longer carries this specific product.

$2.25 / each


Model # B121ADJ

Internet # 202077339

Store SKU # 208653

The Carlon Vertical 21 cu in. PVC 1-Gang Wall Box Adjust-a-box with Adjustable Bracket for Vertical Mount is designed to allow adjustment of depth after the wall covering has been installed. Adjusts to any wall covering. The Carlon Zip Box Blue 1 Gang 20 cu. in. Old Work Non-Metallic Switch and Outlet Box is designed to work with non-metallic sheathed cable in accordance with Article 314 of the National Electric Code. Great for light commercial and residential applications, the box is crafted with non-conductive PVC for durability and is fire rated and UL listed to help ensure safety.

  • Typical uses are in kitchens and bathrooms
  • Protects indoor wiring from impacts, dust and wear
  • Thermoplastic construction resists rust and won't conduct electricity
  • Mounts to standard wood or metal stud horizontally
  • Adjusts from 0 to 1 1/2 in. depth
  • Convenient adjustable bracket for ease of installation
  • UL listed

Info & Guides

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Assembled Depth (in.)  5.03 in  Assembled Height (in.)  3.32 in 
Assembled Width (in.)  3.95 in  Product Depth (in.)  5.03 
Product Height (in.)  3.32  Product Width (in.)  3.95 
Trade Size (in.)  Other 
Box Type  Wall box  Color Family  Blue 
Electrical Product Type  Box  Material  PVC 
Number of Gangs  Number of Knockouts 
Package Quantity  24  Packaging Type  Consumer Packaging 
Power Distribution Features  Fire Rated  Product Weight (lb.)  0.39 lb 
Returnable  90-Day 
Warranty / Certifications
Certifications and Listings  1-UL Listed  Manufacturer Warranty  None 


Rated 3.7 out of 5 by 6 reviewers.
Rated 1 out of 5 by Do Not Recommend Great concept but has fatal flaw. The box gets pushed in or pulled forward when plugging in or unplugging an appliance, in my case, simple things such as an alarm clock, small lamp etc. I wish I knew this before I installed 20 of them in my new home addition. I wonder if they actually tested these boxes for performance before commencing mass production and sales. July 16, 2014
Rated 5 out of 5 by Excelent for new construction easy install and easy adjust after finishes are installed. November 4, 2014
Rated 1 out of 5 by Not suitable for receptacles I installed 25 throughout my workshop. The reason I went with these is because didn't know if I would add wainscoting at a later point. Therefore I didn't know the exact the thickness of my inside wall at the time of the electrical installation. If you plan use a heavy duty receptacle, one that will actually hold your plug DO NOT USE THESE BOXES! It will move back and forth in the wall, and I can only estimate that it will be a matter of time before the flimsy threads on every one of these break and I will have to replace all of them. I would not recommend these to anyone to use for receptacles. February 9, 2014
Rated 5 out of 5 by best box on the market These boxes are awesome because your can adjust the face of the box to the finish wall as required by California code. This feature insures the secure fit of the outlets or switches you attach with no gaps behind the cover-plate. November 29, 2011
Rated 5 out of 5 by easiest install ever In a recent remodel I used these and even though they were a little more cost wise was thoroughly sold on them. They are without a doubt the easiest to install/and or reposition before securing, and the debt adjustment makes it ideal for applications where the finished wall has not been decided upon. March 31, 2013
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