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Arlington (3)
DiversiTech (1)
Southwire (10)
Steel City (23)

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Bracket (15)
Clip (1)
Extension (12)
Hanger (4)
Mounting Clip (1)
Ring (3)

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Octagon (2)
Square (10)

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4" (5)
11" (1)
11-1/2" (1)
12" (1)
14-1/2" (3)
15" (2)
16" (2)
17-3/4" (1)
18" (2)
24" (4)
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1-1/2" (9)
1-7/8" (1)
2-1/2" (2)
2-1/8" (3)
3-5/8" (1)
6" (1)

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$1 to $5 (20)
$5 to $10 (10)
$10 to $15 (3)
$20 to $25 (2)
$35 to $40 (1)
$50 to $60 (1)

Metallic Device Box Extensions & Accessories

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More About Metallic Device Box Extensions & Accessories

This category contains accessories for metallic device boxes and electrical enclosures. Box extensions, mud rings, box clamps and more can be found here.
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4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" and 3/4" Knockouts
$4.09 each
BOX UP & SAVE 13%
$178.50 box of 50
$3.57 each
Get 17 by Wed, Feb 28
More Available
Get 17 by Wed, Feb 28
More Available
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4" x 2-1/8" Deep Square Box Extension Ring w/ 1/2" and 3/4" Knockouts
$7.07 each
Get 15 by Wed, Feb 28
More Available
Get 15 by Wed, Feb 28
More Available
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24" Heavy-Duty T-Grid Box Hanger w/ Mounting Clip
24" Heavy-Duty T-Grid Box Hanger w/ Mounting Clip
SKU: 512HDTZ
Southwire
SKU: 512HDTZ
Brand: Southwire
$10.89 each
Get 56 by Wed, Feb 28
More Available
Get 56 by Wed, Feb 28
More Available
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4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" & 3/4" Eccentric Knockouts
$10.33 each
Get 12 by Thu, Feb 29
More Available
Get 12 by Thu, Feb 29
More Available
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Old Work Box Support Clip, Adapts to Wall Thickness Up to 3/4"
$2.34 each
BOX UP & SAVE 13%
$50.75 box of 25
$2.03 each
Get 882 by Wed, Feb 28
More Available
Get 882 by Wed, Feb 28
More Available
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4" x 1-1/2" Deep Square Box Extension Ring w/ 1/2" Knockouts
$3.76 each
Get 160 by Wed, Feb 28
Get 160 by Wed, Feb 28
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4" Square Single Gang Device Ring, 1-1/4" Raised
$2.27 each
Get 35 by Wed, Feb 28
More Available
Get 35 by Wed, Feb 28
More Available
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4" x 2-1/8" x 1-7/8" Deep Box Extension Ring w/ 1/2" Knockouts
$3.20 each
Get 50 by Wed, Feb 28
More Available
Get 50 by Wed, Feb 28
More Available
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Single-Gang Adjustable Mud Ring for 4" Square Boxes
$8.22 each
BOX UP & SAVE 11%
$182.50 box of 25
$7.30 each
Get 56 by Wed, Feb 28
More Available
Get 56 by Wed, Feb 28
More Available
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7/8" Adjustable Depth Single-Gang Switch Box Extension w/ 1-1/4" Mounting Screws
$3.99 each
BOX UP & SAVE 3%
$193.00 box of 50
$3.86 each
Get 75 by Wed, Feb 28
Get 75 by Wed, Feb 28
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Two-Gang Adjustable Mud Ring for 4" Square Boxes
$9.90 each
BOX UP & SAVE 13%
$171.40 box of 20
$8.57 each
Get 17 by Wed, Feb 28
More Available
Get 17 by Wed, Feb 28
More Available
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11 - 18" Expandable Telescoping Screw Gun Box Support Bracket
$2.89 each
Get 109 by Wed, Feb 28
Get 109 by Wed, Feb 28
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4-11/16" x 2-1/8" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts
$6.69 each
BOX UP & SAVE 16%
$112.60 box of 20
$5.63 each
Get 65 by Wed, Feb 28
Get 65 by Wed, Feb 28
Compare
4-11/16" x 1-1/2" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts
$9.63 each
BOX UP & SAVE 17%
$159.80 box of 20
$7.99 each
Get 49 by Wed, Feb 28
More Available
Get 49 by Wed, Feb 28
More Available
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14-1/4 - 24-1/4" Expandable Telescoping Screw Gun Box Support Bracket
$4.77 each
Get 35 by Thu, Feb 29
Get 35 by Thu, Feb 29
Compare
4" x 1-1/2" Deep Octagon Box Extension Ring w/ 1/2" and 3/4" Knockouts
$3.14 each
BOX UP & SAVE 3%
$76.00 box of 25
$3.04 each
Get 102 by Wed, Feb 28
More Available
Get 102 by Wed, Feb 28
More Available
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4-11/16" x 2-1/8" Deep Square Box Extension Ring, 1" Knockouts
$21.39 each
Get 15 by Wed, Feb 28
Get 15 by Wed, Feb 28
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15" - 24" SliderBar Adjustable Box Mounting Bracket
$3.85 each
Get 10 by Wed, Feb 28
More Available
Get 10 by Wed, Feb 28
More Available
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12" - 18" SliderBar Adjustable Box Mounting Bracket
$2.72 each
BOX UP & SAVE 5%
$64.50 box of 25
$2.58 each
Get 2 by Wed, Feb 28
Get 2 by Wed, Feb 28
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16" Adjustable Bar Box Bracket
16" Adjustable Bar Box Bracket
SKU: SSF-SG16A
Steel City
SKU: SSF-SG16A
Brand: Steel City
$4.19 each
BOX UP & SAVE 8%
$193.00 box of 50
$3.86 each
Get 150 by Thu, Feb 29
More Available
Get 150 by Thu, Feb 29
More Available
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3 Point Box-to-Stud Mounting Bracket
3 Point Box-to-Stud Mounting Bracket
SKU: SSF-SH2346
Steel City
SKU: SSF-SH2346
Brand: Steel City
$2.82 each
BOX UP & SAVE 20%
$113.50 box of 50
$2.27 each
Get it by Tue, Mar 19 - Tue, Mar 26
Get it by Tue, Mar 19 - Tue, Mar 26
Compare
4" x 1-1/2" Deep Octagon Box Extension Ring w/ 1/2" Knockouts
$3.14 each
Get 25 by Wed, Feb 28
More Available
Get 25 by Wed, Feb 28
More Available
Compare
Accessory Clip for TZ512HD
Accessory Clip for TZ512HD
SKU: TZ512CLIP
Southwire
SKU: TZ512CLIP
Brand: Southwire
$1.53 each
Get 12 by Wed, Feb 28
More Available
Get 12 by Wed, Feb 28
More Available
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24" Adjustable Bar Box Bracket
24" Adjustable Bar Box Bracket
SKU: SSF-SG24A
Steel City
SKU: SSF-SG24A
Brand: Steel City
$5.47 each
BOX UP & SAVE 17%
$227.00 box of 50
$4.54 each
Get 48 by Fri, Mar 1
Get 48 by Fri, Mar 1
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Filter & Sort
37 items
Reset

SORT

Top Sellers
Default
Price ▲
Price ▼

Product Availability

Show In Stock Only (27)

Brand

Arlington (3)
DiversiTech (1)
Southwire (10)
Steel City (23)

Product Type

Bracket (15)
Clip (1)
Extension (12)
Hanger (4)
Mounting Clip (1)
Ring (3)

Shape

Octagon (2)
Square (10)

Length (Inches)

4" (5)
11" (1)
11-1/2" (1)
12" (1)
14-1/2" (3)
15" (2)
16" (2)
17-3/4" (1)
18" (2)
24" (4)
See More

Depth (Inches)

1-1/2" (9)
1-7/8" (1)
2-1/2" (2)
2-1/8" (3)
3-5/8" (1)
6" (1)

Price Range

$1 to $5 (20)
$5 to $10 (10)
$10 to $15 (3)
$20 to $25 (2)
$35 to $40 (1)
$50 to $60 (1)
Clear All