Shop junction box extension

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$1,395.75
Appleton 4Sjde-1 Rng Ext 4-11/16 Square 2-1/8 Deep 1" Kos
Gordon Electric Supply
$1,395.75
Appleton 4Sjde-1 Rng Ext 4-11/16 Square 2-1/8 Deep 1" Kos
Gordon Electric Supply
$615.75
Appleton 1490 Switch Box Extension
Gordon Electric Supply
$615.75
Appleton 1490 Switch Box Extension
Gordon Electric Supply
$142.00
Appleton 4Ses 4X1-1/2D Square Ext
Gordon Electric Supply
$142.00
Appleton 4Ses 4X1-1/2D Square Ext
Gordon Electric Supply
$13.99
6Pcs 1/4 Inch Single Gang Outlet Box Extenders, Outlet Extender For Electrical Box With 12 Screws Receptacle Extension Box For Electrical Outlet
Amazon.com
$13.99
6Pcs 1/4 Inch Single Gang Outlet Box Extenders, Outlet Extender For Electrical Box With 12 Screws Receptacle Extension Box For Electrical Outlet
Amazon.com
$15.59
$18.99
Juexica 2 Sets Ul Listed Weatherproof Electrical Box Extension 1-Gang (4) 1/2-Inch, Receptacle Aluminum Fireproof Outlets Extender With 4 Lids And 8
Amazon.com
2
17% off
$15.59
$18.99
Juexica 2 Sets Ul Listed Weatherproof Electrical Box Extension 1-Gang (4) 1/2-Inch, Receptacle Aluminum Fireproof Outlets Extender With 4 Lids And 8
Amazon.com
$9.41
Bell Extension Box: Extension/Adapter, Aluminum, Gray, 1 Model: 5406-0
Grainger
413
$9.41
Bell Extension Box: Extension/Adapter, Aluminum, Gray, 1 Model: 5406-0
Grainger
$18.95
Mint Bucket Brands 1/2" Single Gang Receptacle Box Extenders, UL Listed With 6-32 X 1.25 Screws, Electrical Outlet Extender For Switches (Blue) (Pack
Amazon.com
25
$18.95
Mint Bucket Brands 1/2" Single Gang Receptacle Box Extenders, UL Listed With 6-32 X 1.25 Screws, Electrical Outlet Extender For Switches (Blue) (Pack
Amazon.com
$6.58
Raco Extension Ring: Steel, Silver, For 2 Gangs, 1.5 in Overall Dp, 4 in Overall Wd, 4 in Overall Lg Model: 203
Grainger
1
$6.58
Raco Extension Ring: Steel, Silver, For 2 Gangs, 1.5 in Overall Dp, 4 in Overall Wd, 4 in Overall Lg Model: 203
Grainger
$86.81
Appleton Electric Cast Box Extension: Tandem Box Extension, Iron, Gray, 1 Model: FS-1EXT
Grainger
$86.81
Appleton Electric Cast Box Extension: Tandem Box Extension, Iron, Gray, 1 Model: FS-1EXT
Grainger
$25.35
Halo Recessed SLD4EXT 4" Surface LED J-Box Extender, 7.75" O.D.
Electric Bargain Store
$25.35
Halo Recessed SLD4EXT 4" Surface LED J-Box Extender, 7.75" O.D.
Electric Bargain Store
$3.98
Commercial Led Lmountextbox Junction Box Extension Kit For Clp7 2X2 & 2X4 Led Panel
Lite Store USA
$3.98
Commercial Led Lmountextbox Junction Box Extension Kit For Clp7 2X2 & 2X4 Led Panel
Lite Store USA
$3.24
TP428 CROUSE-HINDS 4"SQ SQUARE BOX EXTENSION RING - 1/2"X3/4" KO's
Kelly & Hayes Electrical Supply
$3.24
TP428 CROUSE-HINDS 4"SQ SQUARE BOX EXTENSION RING - 1/2"X3/4" KO's
Kelly & Hayes Electrical Supply
$6.89
Garvin Southwire 4-11/16 Welded Extension Box Converts One Gang To 4-11/16 Square 2-1/8 Inch Deep 1/2 And 3/4 (73171-Sub)
Lite Store USA
$6.89
Garvin Southwire 4-11/16 Welded Extension Box Converts One Gang To 4-11/16 Square 2-1/8 Inch Deep 1/2 And 3/4 (73171-Sub)
Lite Store USA
$5.59
BELL OUTDOOR Extension Box, 1 Gang, Aluminum, Extension/Adapter Box Type, 5406-0
Zoro.com
413
$5.59
BELL OUTDOOR Extension Box, 1 Gang, Aluminum, Extension/Adapter Box Type, 5406-0
Zoro.com
$45.78
Hammond CSG1212EXT4 Extender Ring, Junction Box, Steel, Nat | Other Enclosure Accessories
Newark
$45.78
Hammond CSG1212EXT4 Extender Ring, Junction Box, Steel, Nat | Other Enclosure Accessories
Newark
$3.99
Cantex EZ Box New And Old Work Square PVC 2 Gang Box Extension Gray
Ace Hardware
$3.99
Cantex EZ Box New And Old Work Square PVC 2 Gang Box Extension Gray
Ace Hardware
$120.53
EXF21 CROUSE-HINDS FS/FD DEVICE BOX EXTENSION
Kelly & Hayes Electrical Supply
$120.53
EXF21 CROUSE-HINDS FS/FD DEVICE BOX EXTENSION
Kelly & Hayes Electrical Supply
$3.99
Cantex EZ Box New And Old Work Square PVC 1 Gang Box Extension Gray
Ace Hardware
17
$3.99
Cantex EZ Box New And Old Work Square PVC 1 Gang Box Extension Gray
Ace Hardware
$3.32
4 in. 1-1/2 in. New Work Deep Pre-Galvanized Metal Octagon Electrical Box Extension Ring (551511234-25R)
Home Depot
75
Free shipping
$3.32
4 in. 1-1/2 in. New Work Deep Pre-Galvanized Metal Octagon Electrical Box Extension Ring (551511234-25R)
Home Depot
$9.28
1/2 in. 1-Gang Outlet Box Spacer Extender (5-Pack)
Home Depot
31
Free shipping
$9.28
1/2 in. 1-Gang Outlet Box Spacer Extender (5-Pack)
Home Depot
$45.34
Hammond Manufacturing CSG1212EXT4 | JUNCTION BOX EXTENDER RING, 4in BOX DEPTH EXTENSION, 12X12, STEEL, FOR CSG ENCLOSUR | Electrical Enclosures
RS
$45.34
Hammond Manufacturing CSG1212EXT4 | JUNCTION BOX EXTENDER RING, 4in BOX DEPTH EXTENSION, 12X12, STEEL, FOR CSG ENCLOSUR | Electrical Enclosures
RS
$11.55
WIREMOLD Extension Box Fitting, Ivory, PVC, 2348S/51
Zoro.com
2
$11.55
WIREMOLD Extension Box Fitting, Ivory, PVC, 2348S/51
Zoro.com
$4.89
Arlington Be3 Triple-Gang Box Extender
Lite Store USA
$4.89
Arlington Be3 Triple-Gang Box Extender
Lite Store USA
$4.99
Southwire Old Work Octagon Steel Box Extension
Ace Hardware
$4.99
Southwire Old Work Octagon Steel Box Extension
Ace Hardware
$354.38
Arlington BE1X Box Extender With Larger Flange, 1 Gang, 4.628 in L X 2.325 in W X 1.813 in D
Voomi Supply
3
$354.38
Arlington BE1X Box Extender With Larger Flange, 1 Gang, 4.628 in L X 2.325 in W X 1.813 in D
Voomi Supply
$18.10
Weatherproof Box Extension, 1 Gang, (2) 1/2" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5399-0
Electrical Parts
92
$18.10
Weatherproof Box Extension, 1 Gang, (2) 1/2" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5399-0
Electrical Parts
$6.21
Multi-Gang Electrical PVC Electrical Box Extender (2-Pack) (B1MGEXT-2)
Home Depot
266
Free shipping
$6.21
Multi-Gang Electrical PVC Electrical Box Extender (2-Pack) (B1MGEXT-2)
Home Depot
$18.15
Weatherproof Box Extension, 1 Gang, (2) 3/4" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5403-0
Electrical Parts
$18.15
Weatherproof Box Extension, 1 Gang, (2) 3/4" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5403-0
Electrical Parts
$3.51
Halco 90538 - Junction Box Extension - Flat Panel Accessory - Expanded Wiring Space
Light Bulb Surplus
$3.51
Halco 90538 - Junction Box Extension - Flat Panel Accessory - Expanded Wiring Space
Light Bulb Surplus
$5.39
RACO Extension Ring, 1 Gang, Steel, Outlet Box Type, 653
Zoro.com
2
$5.39
RACO Extension Ring, 1 Gang, Steel, Outlet Box Type, 653
Zoro.com
$3.00
BE1R 4.35" X 1-1/2", Plastic, Electrical Octagon Ceiling Box Extender
Kelly & Hayes Electrical Supply
1
$3.00
BE1R 4.35" X 1-1/2", Plastic, Electrical Octagon Ceiling Box Extender
Kelly & Hayes Electrical Supply
$26.47
Weatherproof Box Extension, 4" Diameter, (4) 1/2" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5363-0
Electrical Parts
$26.47
Weatherproof Box Extension, 4" Diameter, (4) 1/2" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5363-0
Electrical Parts
$45.00
4-OD-EXT-SPL ABB THOMAS & BETTS - Electrical Products & Outlet/Handy Box Supplies
Radwell.com
$45.00
4-OD-EXT-SPL ABB THOMAS & BETTS - Electrical Products & Outlet/Handy Box Supplies
Radwell.com
$4.79
Steel City 59361-1/2 4" X 2-1/8" X 1-7/8" Deep Box Extension Ring W/ 1/2" Knockouts | Supplyhouse.Com
SupplyHouse.com
1
$4.79
Steel City 59361-1/2 4" X 2-1/8" X 1-7/8" Deep Box Extension Ring W/ 1/2" Knockouts | Supplyhouse.Com
SupplyHouse.com
$8.00
Steel City 73171-1/2-3/4 4-11/16" X 2-1/8" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts | Supplyhouse.Com
SupplyHouse.com
1
$8.00
Steel City 73171-1/2-3/4 4-11/16" X 2-1/8" Deep Square Box Extension Ring, 1/2" & 3/4" Knockouts | Supplyhouse.Com
SupplyHouse.com
$24.99
NO-MESS 2-Gang Junction Box Extender
Etsy
Free shipping
$24.99
NO-MESS 2-Gang Junction Box Extender
Etsy
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Shop junction box extension

Sponsored
About our ads
$3.24
TP428 CROUSE-HINDS 4"SQ SQUARE BOX EXTENSION RING - 1/2"X3/4" KO's
Kelly & Hayes Electrical Supply
$3.24
TP428 CROUSE-HINDS 4"SQ SQUARE BOX EXTENSION RING - 1/2"X3/4" KO's
Kelly & Hayes Electrical Supply
$6.89
Garvin Southwire 4-11/16 Welded Extension Box Converts One Gang To 4-11/16 Square 2-1/8 Inch Deep 1/2 And 3/4 (73171-Sub)
Lite Store USA
$6.89
Garvin Southwire 4-11/16 Welded Extension Box Converts One Gang To 4-11/16 Square 2-1/8 Inch Deep 1/2 And 3/4 (73171-Sub)
Lite Store USA
$5.59
BELL OUTDOOR Extension Box, 1 Gang, Aluminum, Extension/Adapter Box Type, 5406-0
Zoro.com
413
$5.59
BELL OUTDOOR Extension Box, 1 Gang, Aluminum, Extension/Adapter Box Type, 5406-0
Zoro.com
$45.78
Hammond CSG1212EXT4 Extender Ring, Junction Box, Steel, Nat | Other Enclosure Accessories
Newark
$45.78
Hammond CSG1212EXT4 Extender Ring, Junction Box, Steel, Nat | Other Enclosure Accessories
Newark
$3.99
Cantex EZ Box New And Old Work Square PVC 2 Gang Box Extension Gray
Ace Hardware
$3.99
Cantex EZ Box New And Old Work Square PVC 2 Gang Box Extension Gray
Ace Hardware
$120.53
EXF21 CROUSE-HINDS FS/FD DEVICE BOX EXTENSION
Kelly & Hayes Electrical Supply
$120.53
EXF21 CROUSE-HINDS FS/FD DEVICE BOX EXTENSION
Kelly & Hayes Electrical Supply
$3.99
Cantex EZ Box New And Old Work Square PVC 1 Gang Box Extension Gray
Ace Hardware
17
$3.99
Cantex EZ Box New And Old Work Square PVC 1 Gang Box Extension Gray
Ace Hardware
$3.32
4 in. 1-1/2 in. New Work Deep Pre-Galvanized Metal Octagon Electrical Box Extension Ring (551511234-25R)
Home Depot
75
Free shipping
$3.32
4 in. 1-1/2 in. New Work Deep Pre-Galvanized Metal Octagon Electrical Box Extension Ring (551511234-25R)
Home Depot
$9.28
1/2 in. 1-Gang Outlet Box Spacer Extender (5-Pack)
Home Depot
31
Free shipping
$9.28
1/2 in. 1-Gang Outlet Box Spacer Extender (5-Pack)
Home Depot
$45.34
Hammond Manufacturing CSG1212EXT4 | JUNCTION BOX EXTENDER RING, 4in BOX DEPTH EXTENSION, 12X12, STEEL, FOR CSG ENCLOSUR | Electrical Enclosures
RS
$45.34
Hammond Manufacturing CSG1212EXT4 | JUNCTION BOX EXTENDER RING, 4in BOX DEPTH EXTENSION, 12X12, STEEL, FOR CSG ENCLOSUR | Electrical Enclosures
RS
$11.55
WIREMOLD Extension Box Fitting, Ivory, PVC, 2348S/51
Zoro.com
2
$11.55
WIREMOLD Extension Box Fitting, Ivory, PVC, 2348S/51
Zoro.com
$4.89
Arlington Be3 Triple-Gang Box Extender
Lite Store USA
$4.89
Arlington Be3 Triple-Gang Box Extender
Lite Store USA
$4.99
Southwire Old Work Octagon Steel Box Extension
Ace Hardware
$4.99
Southwire Old Work Octagon Steel Box Extension
Ace Hardware
$354.38
Arlington BE1X Box Extender With Larger Flange, 1 Gang, 4.628 in L X 2.325 in W X 1.813 in D
Voomi Supply
3
$354.38
Arlington BE1X Box Extender With Larger Flange, 1 Gang, 4.628 in L X 2.325 in W X 1.813 in D
Voomi Supply
$18.10
Weatherproof Box Extension, 1 Gang, (2) 1/2" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5399-0
Electrical Parts
92
$18.10
Weatherproof Box Extension, 1 Gang, (2) 1/2" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5399-0
Electrical Parts
$6.21
Multi-Gang Electrical PVC Electrical Box Extender (2-Pack) (B1MGEXT-2)
Home Depot
266
Free shipping
$6.21
Multi-Gang Electrical PVC Electrical Box Extender (2-Pack) (B1MGEXT-2)
Home Depot
$18.15
Weatherproof Box Extension, 1 Gang, (2) 3/4" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5403-0
Electrical Parts
$18.15
Weatherproof Box Extension, 1 Gang, (2) 3/4" Outlets, 1-1/2" Deep, Aluminum Die Cast By Hubbell-Raco 5403-0
Electrical Parts
$3.51
Halco 90538 - Junction Box Extension - Flat Panel Accessory - Expanded Wiring Space
Light Bulb Surplus
$3.51
Halco 90538 - Junction Box Extension - Flat Panel Accessory - Expanded Wiring Space
Light Bulb Surplus

Shop junction box extension

Sponsored
About our ads
$1,395.75
Appleton 4Sjde-1 Rng Ext 4-11/16 Square 2-1/8 Deep 1" Kos
Gordon Electric Supply
$1,395.75
Appleton 4Sjde-1 Rng Ext 4-11/16 Square 2-1/8 Deep 1" Kos
Gordon Electric Supply
$615.75
Appleton 1490 Switch Box Extension
Gordon Electric Supply
$615.75
Appleton 1490 Switch Box Extension
Gordon Electric Supply
$142.00
Appleton 4Ses 4X1-1/2D Square Ext
Gordon Electric Supply
$142.00
Appleton 4Ses 4X1-1/2D Square Ext
Gordon Electric Supply
$13.99
6Pcs 1/4 Inch Single Gang Outlet Box Extenders, Outlet Extender For Electrical Box With 12 Screws Receptacle Extension Box For Electrical Outlet
Amazon.com
$13.99
6Pcs 1/4 Inch Single Gang Outlet Box Extenders, Outlet Extender For Electrical Box With 12 Screws Receptacle Extension Box For Electrical Outlet
Amazon.com
$15.59
$18.99
Juexica 2 Sets Ul Listed Weatherproof Electrical Box Extension 1-Gang (4) 1/2-Inch, Receptacle Aluminum Fireproof Outlets Extender With 4 Lids And 8
Amazon.com
2
17% off
$15.59
$18.99
Juexica 2 Sets Ul Listed Weatherproof Electrical Box Extension 1-Gang (4) 1/2-Inch, Receptacle Aluminum Fireproof Outlets Extender With 4 Lids And 8
Amazon.com
$9.41
Bell Extension Box: Extension/Adapter, Aluminum, Gray, 1 Model: 5406-0
Grainger
413
$9.41
Bell Extension Box: Extension/Adapter, Aluminum, Gray, 1 Model: 5406-0
Grainger
$18.95
Mint Bucket Brands 1/2" Single Gang Receptacle Box Extenders, UL Listed With 6-32 X 1.25 Screws, Electrical Outlet Extender For Switches (Blue) (Pack
Amazon.com
25
$18.95
Mint Bucket Brands 1/2" Single Gang Receptacle Box Extenders, UL Listed With 6-32 X 1.25 Screws, Electrical Outlet Extender For Switches (Blue) (Pack
Amazon.com
$6.58
Raco Extension Ring: Steel, Silver, For 2 Gangs, 1.5 in Overall Dp, 4 in Overall Wd, 4 in Overall Lg Model: 203
Grainger
1
$6.58
Raco Extension Ring: Steel, Silver, For 2 Gangs, 1.5 in Overall Dp, 4 in Overall Wd, 4 in Overall Lg Model: 203
Grainger
$86.81
Appleton Electric Cast Box Extension: Tandem Box Extension, Iron, Gray, 1 Model: FS-1EXT
Grainger
$86.81
Appleton Electric Cast Box Extension: Tandem Box Extension, Iron, Gray, 1 Model: FS-1EXT
Grainger
$25.35
Halo Recessed SLD4EXT 4" Surface LED J-Box Extender, 7.75" O.D.
Electric Bargain Store
$25.35
Halo Recessed SLD4EXT 4" Surface LED J-Box Extender, 7.75" O.D.
Electric Bargain Store
$3.98
Commercial Led Lmountextbox Junction Box Extension Kit For Clp7 2X2 & 2X4 Led Panel
Lite Store USA
$3.98
Commercial Led Lmountextbox Junction Box Extension Kit For Clp7 2X2 & 2X4 Led Panel
Lite Store USA
$3.24
TP428 CROUSE-HINDS 4"SQ SQUARE BOX EXTENSION RING - 1/2"X3/4" KO's
Kelly & Hayes Electrical Supply
$3.24
TP428 CROUSE-HINDS 4"SQ SQUARE BOX EXTENSION RING - 1/2"X3/4" KO's
Kelly & Hayes Electrical Supply
$6.89
Garvin Southwire 4-11/16 Welded Extension Box Converts One Gang To 4-11/16 Square 2-1/8 Inch Deep 1/2 And 3/4 (73171-Sub)
Lite Store USA
$6.89
Garvin Southwire 4-11/16 Welded Extension Box Converts One Gang To 4-11/16 Square 2-1/8 Inch Deep 1/2 And 3/4 (73171-Sub)
Lite Store USA
$5.59
BELL OUTDOOR Extension Box, 1 Gang, Aluminum, Extension/Adapter Box Type, 5406-0
Zoro.com
413
$5.59
BELL OUTDOOR Extension Box, 1 Gang, Aluminum, Extension/Adapter Box Type, 5406-0
Zoro.com
$45.78
Hammond CSG1212EXT4 Extender Ring, Junction Box, Steel, Nat | Other Enclosure Accessories
Newark
$45.78
Hammond CSG1212EXT4 Extender Ring, Junction Box, Steel, Nat | Other Enclosure Accessories
Newark
$3.99
Cantex EZ Box New And Old Work Square PVC 2 Gang Box Extension Gray
Ace Hardware
$3.99
Cantex EZ Box New And Old Work Square PVC 2 Gang Box Extension Gray
Ace Hardware
$120.53
EXF21 CROUSE-HINDS FS/FD DEVICE BOX EXTENSION
Kelly & Hayes Electrical Supply
$120.53
EXF21 CROUSE-HINDS FS/FD DEVICE BOX EXTENSION
Kelly & Hayes Electrical Supply
$3.99
Cantex EZ Box New And Old Work Square PVC 1 Gang Box Extension Gray
Ace Hardware
17
$3.99
Cantex EZ Box New And Old Work Square PVC 1 Gang Box Extension Gray
Ace Hardware

  • Junction Box Extension | Huge In-Stock Inventory

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