Color
Depth
Length
Material
Manufacturer
Style
Type
Width
Special Interest
Box Extensions
Are used to provide additional cubic capacity or as an outlet box for surface conduit.
(12 items in Box Extensions) 
Fastenal Part No. (SKU) 0700704
#201 4"Lx4"Wx1-1/2"D Ring Square Box Extension w/ 12 (1/2") Conduit Knockouts
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Online Price:
$4.79 / each
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Fastenal Part No. (SKU) 0704402
#8203 4"Lx4"Wx1-1/2"D Ring Square Box Extension w/ 8 (1/2") & 4 (3/4") UL Listed Conduit Knockouts
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$3.01 / each
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Fastenal Part No. (SKU) 0703532
4-1/2"Lx4-1/2"Wx2-5/8"D Weatherproof Two-Gang Box Extension w/ 5 (3/4") Threaded Outlets
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Online Price:
$28.25 / each
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Fastenal Part No. (SKU) 0701314
#665 4"Lx2"Wx1-7/8"D Box Extension w/ 8 (1/2") Conduit Knockouts
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$5.80 / each
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Fastenal Part No. (SKU) 0703508
4-1/2"L x 2-3/4"W x 1"D Weatherproof Single-Gang Extension Adapter
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$8.25 / each
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Fastenal Part No. (SKU) 0700744
#8128 4"Lx4"Wx1-1/2"D Ring Octagon Extension w/ 4 (1/2") Conduit Knockouts
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Fastenal Part No. (SKU) 99027645
#653 4"Lx2"Wx1-1/2"D Box Extension w/ 8 (1/2") Conduit Knockouts
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Online Price:
$4.42 / each
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Fastenal Part No. (SKU) 0703534
4-21/32"L x 4-21/32"W x 1-1/32"D Weatherproof Two-Gang Box Extension
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Online Price:
$21.83 / each
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Fastenal Part No. (SKU) 99027584
#250 4-11/16"Lx4-11/16"Wx1-1/2"D Box Extension w/ 8 (1/2") & 4 (3/4") Conduit Knockouts
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Online Price:
$14.77 / each
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Fastenal Part No. (SKU) 0703510
5-1/4"Lx3-1/2"Wx1-1/2"D Weatherproof Single-Gang Extension Adapter w/ 6 (3/4")Threaded Outlets
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Online Price:
$14.46 / each
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Fastenal Part No. (SKU) 0703515
5-1/4"Lx3-1/2"Wx1-1/2"D Swing Arm-Weatherproof Single-Gang Extension Adapter w/ 2 (1/2") Threaded Outlets
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Online Price:
$14.44 / each
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Fastenal Part No. (SKU) 0703513
5-1/4"Lx3-1/2"Wx1-1/2"D Weatherproof Single-Gang Extension Adapter w/ 2 (1/2") Threaded Outlets
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Online Price:
$12.66 / each
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