Shop 4 Electrical Box Extender

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$2.59
Garvin 53151-Sub 4" Sq Extension Ring Converts 1-Gang To 4" Sq 1-1/2" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$2.59
Garvin 53151-Sub 4" Sq Extension Ring Converts 1-Gang To 4" Sq 1-1/2" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$4.79
Garvin Bex-475 4" Sq Box Extender 3/4" Raised
New Feedonomics Feed - ARC 8/12/2025
$4.79
Garvin Bex-475 4" Sq Box Extender 3/4" Raised
New Feedonomics Feed - ARC 8/12/2025
$4.39
Garvin Bex-450 4" Sq Box Extender 1/2" Raised
New Feedonomics Feed - ARC 8/12/2025
$4.39
Garvin Bex-450 4" Sq Box Extender 1/2" Raised
New Feedonomics Feed - ARC 8/12/2025
$7.29
Garvin 53171-Sub 4" Sq Extension Ring Converts 1-Gang To 4" Sq 2-1/8" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$7.29
Garvin 53171-Sub 4" Sq Extension Ring Converts 1-Gang To 4" Sq 2-1/8" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$13.79
Garvin 73171-Sub 4-11/16" Welded Extension Box Converts 1-Gang To 4-11/16" Sq 2-1/8" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$13.79
Garvin 73171-Sub 4-11/16" Welded Extension Box Converts 1-Gang To 4-11/16" Sq 2-1/8" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$7.89
Garvin 55171-S 4" Octagon Extension Ring 2-1/8" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$7.89
Garvin 55171-S 4" Octagon Extension Ring 2-1/8" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$72.09
Garvin Tbx-425 Masonry Box Extension Ring 4-Gang 2-1/2" Deep
New Feedonomics Feed - ARC 8/12/2025
$72.09
Garvin Tbx-425 Masonry Box Extension Ring 4-Gang 2-1/2" Deep
New Feedonomics Feed - ARC 8/12/2025
$16.19
Garvin Gbex-1584 1-5/8" Deep 4-Gang Multi-Gang Box Extension Ring
New Feedonomics Feed - ARC 8/12/2025
$16.19
Garvin Gbex-1584 1-5/8" Deep 4-Gang Multi-Gang Box Extension Ring
New Feedonomics Feed - ARC 8/12/2025
$1.89
Garvin 55151-1/2 4" Octagon Extension Ring 1-1/2" Deep 1/2" Ko's
New Feedonomics Feed - ARC 8/12/2025
$1.89
Garvin 55151-1/2 4" Octagon Extension Ring 1-1/2" Deep 1/2" Ko's
New Feedonomics Feed - ARC 8/12/2025
$3.29
Garvin Sbex Switch Box Adjustable Extension Ring
New Feedonomics Feed - ARC 8/12/2025
$3.29
Garvin Sbex Switch Box Adjustable Extension Ring
New Feedonomics Feed - ARC 8/12/2025
$152.80
Orbit Exr50-4 Weather-Proof 4" Extension Ring Box
New Feedonomics Feed - ARC 8/12/2025
$152.80
Orbit Exr50-4 Weather-Proof 4" Extension Ring Box
New Feedonomics Feed - ARC 8/12/2025
$9.99
4Pcs Electrical Box Extenders, 1/4" Receptacle Outlet Box Extenders Single Gang Extender With 8 Screws Outlet Extender For Electrical And Power
Amazon.com
9
$9.99
4Pcs Electrical Box Extenders, 1/4" Receptacle Outlet Box Extenders Single Gang Extender With 8 Screws Outlet Extender For Electrical And Power
Amazon.com
$12.99
3PCS BE4 Electrical Outlet Box Extenders With 24PCS Screws, (4-Gang) Electrical Power Outlet Box Extenderextender Electric Box Extender 4 Gang
Amazon.com
2
$12.99
3PCS BE4 Electrical Outlet Box Extenders With 24PCS Screws, (4-Gang) Electrical Power Outlet Box Extenderextender Electric Box Extender 4 Gang
Amazon.com
$8.25
Steel-City 55151-1/2-25 4" Octagon Box Extension Ring, 15.8Cu, Ko's
New Feedonomics Feed - ARC 8/12/2025
17
$8.25
Steel-City 55151-1/2-25 4" Octagon Box Extension Ring, 15.8Cu, Ko's
New Feedonomics Feed - ARC 8/12/2025
$4.38
Arlington Be1r Round Box Extender
New Feedonomics Feed - ARC 8/12/2025
1
$4.38
Arlington Be1r Round Box Extender
New Feedonomics Feed - ARC 8/12/2025
$295.00
Bowers 4-Sw-Ext-Spl 4" Square Extension Ring
New Feedonomics Feed - ARC 8/12/2025
$295.00
Bowers 4-Sw-Ext-Spl 4" Square Extension Ring
New Feedonomics Feed - ARC 8/12/2025
$32.99
Qlvily 12 Packs Square Extension Ring, 4" L X 4" W Electrical Box Extension Ring With 1/2" And 3/4" Knockouts, 1-1/2'' Deep, Electrical Box Extender,
Amazon.com
1
$32.99
Qlvily 12 Packs Square Extension Ring, 4" L X 4" W Electrical Box Extension Ring With 1/2" And 3/4" Knockouts, 1-1/2'' Deep, Electrical Box Extender,
Amazon.com
$2.21
Raco 203 4" Square 1-1/2D Extension Comb Ko
New Feedonomics Feed - ARC 8/12/2025
$2.21
Raco 203 4" Square 1-1/2D Extension Comb Ko
New Feedonomics Feed - ARC 8/12/2025
$8.68
Arlington BE4 4-Gang Electrical Outlet Box Extender (White) | Supplyhouse.Com
SupplyHouse.com
5
$8.68
Arlington BE4 4-Gang Electrical Outlet Box Extender (White) | Supplyhouse.Com
SupplyHouse.com
$24.99
OHLECTRIC 4" Square Steel Work Box Extension Rings 2-1/8" Deep With Eight 1/2" & 3/4" Knockouts, Fire Rated| Ideal For Wiring Connections, Housing
Amazon.com
28
$24.99
OHLECTRIC 4" Square Steel Work Box Extension Rings 2-1/8" Deep With Eight 1/2" & 3/4" Knockouts, Fire Rated| Ideal For Wiring Connections, Housing
Amazon.com
$8.99
Maxmoral 2PCS Single Outlet Box Extender With 4 Screws Electrical Junction Box Extender Electrical Outlet Switch Blue For Electrical Boxes Power
Amazon.com
$8.99
Maxmoral 2PCS Single Outlet Box Extender With 4 Screws Electrical Junction Box Extender Electrical Outlet Switch Blue For Electrical Boxes Power
Amazon.com
$11.07
Taymac SE475S Weatherproof Box Extension, 1-Gang, (4) 3/4-Inch Outlets, Gray
Amazon.com
5
$11.07
Taymac SE475S Weatherproof Box Extension, 1-Gang, (4) 3/4-Inch Outlets, Gray
Amazon.com
$152.40
Orbit 5Ssb-Mko-Ext 4-11/16 Extension Box
New Feedonomics Feed - ARC 8/12/2025
$152.40
Orbit 5Ssb-Mko-Ext 4-11/16 Extension Box
New Feedonomics Feed - ARC 8/12/2025
$13.49
YEXEXINM 5Pcs Round Electrical Box Extender 1-Gang Plastic Electrical Ceiling Box Extender For 3.5 Inch 4 Inch Round Or Octagonal Electrical Boxes,
Amazon.com
$13.49
YEXEXINM 5Pcs Round Electrical Box Extender 1-Gang Plastic Electrical Ceiling Box Extender For 3.5 Inch 4 Inch Round Or Octagonal Electrical Boxes,
Amazon.com
$11.12
Arlington BE4 | 4-GANG BOX EXTENDER
AllDataResource.com
90-day returns (most items)
$11.12
Arlington BE4 | 4-GANG BOX EXTENDER
AllDataResource.com
$8.95
Arlington Be4 Four-Gang Box Extender
Lite Store USA
$8.95
Arlington Be4 Four-Gang Box Extender
Lite Store USA
$17.99
Kanayu 5 Pieces 4/5" Single Gang Electrical Box Extender UL Listed, Receptacle Extenders For Electrical Box And Power Socket Switch, White
Amazon.com
55
$17.99
Kanayu 5 Pieces 4/5" Single Gang Electrical Box Extender UL Listed, Receptacle Extenders For Electrical Box And Power Socket Switch, White
Amazon.com
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    Shop 4 Electrical Box Extender

    Sponsored
    About our ads
    $2.59
    Garvin 53151-Sub 4" Sq Extension Ring Converts 1-Gang To 4" Sq 1-1/2" Deep 1/2" & 3/4" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $2.59
    Garvin 53151-Sub 4" Sq Extension Ring Converts 1-Gang To 4" Sq 1-1/2" Deep 1/2" & 3/4" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $4.79
    Garvin Bex-475 4" Sq Box Extender 3/4" Raised
    New Feedonomics Feed - ARC 8/12/2025
    $4.79
    Garvin Bex-475 4" Sq Box Extender 3/4" Raised
    New Feedonomics Feed - ARC 8/12/2025
    $4.39
    Garvin Bex-450 4" Sq Box Extender 1/2" Raised
    New Feedonomics Feed - ARC 8/12/2025
    $4.39
    Garvin Bex-450 4" Sq Box Extender 1/2" Raised
    New Feedonomics Feed - ARC 8/12/2025
    $7.29
    Garvin 53171-Sub 4" Sq Extension Ring Converts 1-Gang To 4" Sq 2-1/8" Deep 1/2" & 3/4" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $7.29
    Garvin 53171-Sub 4" Sq Extension Ring Converts 1-Gang To 4" Sq 2-1/8" Deep 1/2" & 3/4" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $13.79
    Garvin 73171-Sub 4-11/16" Welded Extension Box Converts 1-Gang To 4-11/16" Sq 2-1/8" Deep 1/2" & 3/4" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $13.79
    Garvin 73171-Sub 4-11/16" Welded Extension Box Converts 1-Gang To 4-11/16" Sq 2-1/8" Deep 1/2" & 3/4" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $7.89
    Garvin 55171-S 4" Octagon Extension Ring 2-1/8" Deep 1/2" & 3/4" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $7.89
    Garvin 55171-S 4" Octagon Extension Ring 2-1/8" Deep 1/2" & 3/4" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $72.09
    Garvin Tbx-425 Masonry Box Extension Ring 4-Gang 2-1/2" Deep
    New Feedonomics Feed - ARC 8/12/2025
    $72.09
    Garvin Tbx-425 Masonry Box Extension Ring 4-Gang 2-1/2" Deep
    New Feedonomics Feed - ARC 8/12/2025
    $16.19
    Garvin Gbex-1584 1-5/8" Deep 4-Gang Multi-Gang Box Extension Ring
    New Feedonomics Feed - ARC 8/12/2025
    $16.19
    Garvin Gbex-1584 1-5/8" Deep 4-Gang Multi-Gang Box Extension Ring
    New Feedonomics Feed - ARC 8/12/2025
    $1.89
    Garvin 55151-1/2 4" Octagon Extension Ring 1-1/2" Deep 1/2" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $1.89
    Garvin 55151-1/2 4" Octagon Extension Ring 1-1/2" Deep 1/2" Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $3.29
    Garvin Sbex Switch Box Adjustable Extension Ring
    New Feedonomics Feed - ARC 8/12/2025
    $3.29
    Garvin Sbex Switch Box Adjustable Extension Ring
    New Feedonomics Feed - ARC 8/12/2025
    $152.80
    Orbit Exr50-4 Weather-Proof 4" Extension Ring Box
    New Feedonomics Feed - ARC 8/12/2025
    $152.80
    Orbit Exr50-4 Weather-Proof 4" Extension Ring Box
    New Feedonomics Feed - ARC 8/12/2025
    $9.99
    4Pcs Electrical Box Extenders, 1/4" Receptacle Outlet Box Extenders Single Gang Extender With 8 Screws Outlet Extender For Electrical And Power
    Amazon.com
    9
    $9.99
    4Pcs Electrical Box Extenders, 1/4" Receptacle Outlet Box Extenders Single Gang Extender With 8 Screws Outlet Extender For Electrical And Power
    Amazon.com
    $12.99
    3PCS BE4 Electrical Outlet Box Extenders With 24PCS Screws, (4-Gang) Electrical Power Outlet Box Extenderextender Electric Box Extender 4 Gang
    Amazon.com
    2
    $12.99
    3PCS BE4 Electrical Outlet Box Extenders With 24PCS Screws, (4-Gang) Electrical Power Outlet Box Extenderextender Electric Box Extender 4 Gang
    Amazon.com
    $8.25
    Steel-City 55151-1/2-25 4" Octagon Box Extension Ring, 15.8Cu, Ko's
    New Feedonomics Feed - ARC 8/12/2025
    17
    $8.25
    Steel-City 55151-1/2-25 4" Octagon Box Extension Ring, 15.8Cu, Ko's
    New Feedonomics Feed - ARC 8/12/2025
    $4.38
    Arlington Be1r Round Box Extender
    New Feedonomics Feed - ARC 8/12/2025
    1
    $4.38
    Arlington Be1r Round Box Extender
    New Feedonomics Feed - ARC 8/12/2025
    $295.00
    Bowers 4-Sw-Ext-Spl 4" Square Extension Ring
    New Feedonomics Feed - ARC 8/12/2025
    $295.00
    Bowers 4-Sw-Ext-Spl 4" Square Extension Ring
    New Feedonomics Feed - ARC 8/12/2025
    $32.99
    Qlvily 12 Packs Square Extension Ring, 4" L X 4" W Electrical Box Extension Ring With 1/2" And 3/4" Knockouts, 1-1/2'' Deep, Electrical Box Extender,
    Amazon.com
    1
    $32.99
    Qlvily 12 Packs Square Extension Ring, 4" L X 4" W Electrical Box Extension Ring With 1/2" And 3/4" Knockouts, 1-1/2'' Deep, Electrical Box Extender,
    Amazon.com
    $2.21
    Raco 203 4" Square 1-1/2D Extension Comb Ko
    New Feedonomics Feed - ARC 8/12/2025
    $2.21
    Raco 203 4" Square 1-1/2D Extension Comb Ko
    New Feedonomics Feed - ARC 8/12/2025
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      4 Electrical Box Extender | Huge Inventory Selection

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