Shop Knockouts On Electrical Boxes

Sponsored
$9.65
Weatherproof Electrical Box NEMA And UL Listed | HD-24F
Polycase
30-day returns (most items)
$9.65
Weatherproof Electrical Box NEMA And UL Listed | HD-24F
Polycase
$22.74
Outdoor Electrical Junction Box | NEMA 4X | WQ-38
Polycase
$22.74
Outdoor Electrical Junction Box | NEMA 4X | WQ-38
Polycase
$106.99
NEMA 4X Electrical Junction Box | Waterproof | WQ-68
Polycase
$106.99
NEMA 4X Electrical Junction Box | Waterproof | WQ-68
Polycase
$30.57
Plastic Electrical Junction Box | Waterproof | WQ-46
Polycase
$30.57
Plastic Electrical Junction Box | Waterproof | WQ-46
Polycase
$9.27
Plastic Electrical Junction Box| Made In USA | DC-46F
Polycase
30-day returns (most items)
$9.27
Plastic Electrical Junction Box| Made In USA | DC-46F
Polycase
$39.19
Outdoor Electrical Junction Box | NEMA 4X | WQ-48
Polycase
$39.19
Outdoor Electrical Junction Box | NEMA 4X | WQ-48
Polycase
$15.23
Black Weatherproof Junction Box NEMA 4X And IP66 Rated | HD-45F
Polycase
$15.23
Black Weatherproof Junction Box NEMA 4X And IP66 Rated | HD-45F
Polycase
$58.00
RACO 232 4 in. Square Electrical Box, 2-1/8-Inch Deep, 1/2-In. And 3/4-In. Side Knockouts, Welded, Gray, 25-Pack
Amazon.com
$58.00
RACO 232 4 in. Square Electrical Box, 2-1/8-Inch Deep, 1/2-In. And 3/4-In. Side Knockouts, Welded, Gray, 25-Pack
Amazon.com
$149.00
Temco Hydraulic Knockout Punch Driver Electrical Conduit Hole KO Tool 3/4"-16
Amazon.com
Free shipping
$149.00
Temco Hydraulic Knockout Punch Driver Electrical Conduit Hole KO Tool 3/4"-16
Amazon.com
$11.97
Raco Hubbell 680 2-Device, 2-1/8-Inch Deep, 1/2-Inch Side Knockouts 4-Inch Square Switch Box, Drawn, Silver,Gray
Amazon.com
$11.97
Raco Hubbell 680 2-Device, 2-1/8-Inch Deep, 1/2-Inch Side Knockouts 4-Inch Square Switch Box, Drawn, Silver,Gray
Amazon.com
$260.50
Case Of 25, Southwire Garvin 4 Square Blank Junction Box 2-1/8 Inch Deep No Knockouts (52171-BLNK)
Lighting Supply
$260.50
Case Of 25, Southwire Garvin 4 Square Blank Junction Box 2-1/8 Inch Deep No Knockouts (52171-BLNK)
Lighting Supply
$11.30
Hubbell-Raco 506 Switch Box In 3 X 2-Inch Gangable 2-1/2-Inch. Deep, Eight 1/2-Inch. Knockouts, Old Work, Plaster Ears, Gray Finish
Amazon.com
$11.30
Hubbell-Raco 506 Switch Box In 3 X 2-Inch Gangable 2-1/2-Inch. Deep, Eight 1/2-Inch. Knockouts, Old Work, Plaster Ears, Gray Finish
Amazon.com
$15.43
Taymac RLB100 Threaded LB Conduit Body, Die Cast Aluminum, Stamped Steel Cover, 1-Inch, Gray
Amazon.com
$15.43
Taymac RLB100 Threaded LB Conduit Body, Die Cast Aluminum, Stamped Steel Cover, 1-Inch, Gray
Amazon.com
$62.57
Pass And Seymour 20A 3-Wire Non-Metallic Back Box 3/4 Inch Knockout (PSBBN201W)
Lighting Supply
60-day returns (most items)
$62.57
Pass And Seymour 20A 3-Wire Non-Metallic Back Box 3/4 Inch Knockout (PSBBN201W)
Lighting Supply
$1.86
Steel City 52151-3/4 4" Steel Square Box W/ 3/4" Knockout | Supplyhouse.Com
SupplyHouse.com
$1.86
Steel City 52151-3/4 4" Steel Square Box W/ 3/4" Knockout | Supplyhouse.Com
SupplyHouse.com
$0.74
Carlon B118A 18 Cubic Inch 1-Gang Nail-On New Work Non-Metallic Outlet Box | Supplyhouse.Com
SupplyHouse.com
3
$0.74
Carlon B118A 18 Cubic Inch 1-Gang Nail-On New Work Non-Metallic Outlet Box | Supplyhouse.Com
SupplyHouse.com
$169.99
TICONN Waterproof Electrical Junction Box IP67 ABS Plastic Enclosure With Hinged Cover With Mounting Plate, Wall Brackets, Cable Glands (Off-White,
Amazon.com
660
Free shipping
$169.99
TICONN Waterproof Electrical Junction Box IP67 ABS Plastic Enclosure With Hinged Cover With Mounting Plate, Wall Brackets, Cable Glands (Off-White,
Amazon.com
$19.99
5-Pack 3/4" Single Gang Receptacle Outlet Box Extenders UL Listed - Screws (6-32 X 1.25") - Electrical Outlet Extender For Electrical Box And
Amazon.com
58
$19.99
5-Pack 3/4" Single Gang Receptacle Outlet Box Extenders UL Listed - Screws (6-32 X 1.25") - Electrical Outlet Extender For Electrical Box And
Amazon.com
$29.99
Qlvily 4 Packs 4" Square Electrical Box, 2-1/8'' Deep Metal Electrical Box With Bracket, 1/2" & 3/4" Side Knockouts, Electrical Junction Box,
Amazon.com
$29.99
Qlvily 4 Packs 4" Square Electrical Box, 2-1/8'' Deep Metal Electrical Box With Bracket, 1/2" & 3/4" Side Knockouts, Electrical Junction Box,
Amazon.com
$59.71
Square D - UHTRS101B 125A Ringless Overhead/Underground Meter Socket With Horn Bypass
Amazon.com
76
Free shipping
$59.71
Square D - UHTRS101B 125A Ringless Overhead/Underground Meter Socket With Horn Bypass
Amazon.com
$30.99
Qlvily 12 Packs 4X2 Inch Metal Electrical Box, Single Gang Electrical Box, Ten 1/2 Inch Knockouts, Raised Ground, 13 Cu. In. Capacity, 1-7/8" Deep,
Amazon.com
10
$30.99
Qlvily 12 Packs 4X2 Inch Metal Electrical Box, Single Gang Electrical Box, Ten 1/2 Inch Knockouts, Raised Ground, 13 Cu. In. Capacity, 1-7/8" Deep,
Amazon.com
$39.99
Lemotech Electrical Box, IP67 Waterproof Hinged Clear Cover Stainless Steel Latch Junction Box, ABS Plastic Electrical Enclosure With Mounting Plate
Amazon.com
Free shipping
$39.99
Lemotech Electrical Box, IP67 Waterproof Hinged Clear Cover Stainless Steel Latch Junction Box, ABS Plastic Electrical Enclosure With Mounting Plate
Amazon.com
$2.07
Steel City 521711234EW-25R 4" X 2-1/8" Deep Square Box W/ 1/2" & 3/4" Eccentric Knockouts, Welded Construction W/ Grounding Bump ,1
SupplyHouse.com
$2.07
Steel City 521711234EW-25R 4" X 2-1/8" Deep Square Box W/ 1/2" & 3/4" Eccentric Knockouts, Welded Construction W/ Grounding Bump ,1
SupplyHouse.com
$17.49
Zulkit Junction Box ABS Plastic Dustproof Waterproof IP65 Universal Electrical Boxes Project Enclosure With Fixed Ear Black 7.87 X 4.72 X 2.95 Inch
Amazon.com
$17.49
Zulkit Junction Box ABS Plastic Dustproof Waterproof IP65 Universal Electrical Boxes Project Enclosure With Fixed Ear Black 7.87 X 4.72 X 2.95 Inch
Amazon.com
$42.99
Arlington EB1111-1 Electronic Equipment Enclosure Box, 11" X 11" X 3.5", Non-Metallic, 1-Pack
Amazon.com
Free shipping
$42.99
Arlington EB1111-1 Electronic Equipment Enclosure Box, 11" X 11" X 3.5", Non-Metallic, 1-Pack
Amazon.com
$158.25
Case Of 25, Southwire Garvin 4 Square Junction Box Red 2-1/8 Inch Deep (8) 1 Inch Side Knockouts (52171-1RED)
Lighting Supply
$158.25
Case Of 25, Southwire Garvin 4 Square Junction Box Red 2-1/8 Inch Deep (8) 1 Inch Side Knockouts (52171-1RED)
Lighting Supply
$67.38
Bryant 6-Gang Wall Box Gangable 4 Inch Deep 2 Inch Knockout (HBL988)
Lighting Supply
60-day returns (most items)
$67.38
Bryant 6-Gang Wall Box Gangable 4 Inch Deep 2 Inch Knockout (HBL988)
Lighting Supply
$12.22
Hubbell-Bell 5332-0 Weatherproof Electrical Box, 1 Gang, 18.3 Cu-In, 4-1/2 in L X 2-3/4 in W X 2 in D, 3/4 Inch, Gray
Amazon.com
51
$12.22
Hubbell-Bell 5332-0 Weatherproof Electrical Box, 1 Gang, 18.3 Cu-In, 4-1/2 in L X 2-3/4 in W X 2 in D, 3/4 Inch, Gray
Amazon.com
$58.99
Natotela Underground Splice Box 12.5x12.5x14.3in Electrical Junction Boxes W/FRP Inspection Cover Deep Enclosure Box Precast PE Pull Box
Amazon.com
Free shipping
$58.99
Natotela Underground Splice Box 12.5x12.5x14.3in Electrical Junction Boxes W/FRP Inspection Cover Deep Enclosure Box Precast PE Pull Box
Amazon.com
$45.00
Case Of 25, Southwire Garvin 4 Square Junction Box 2-1/8 Inch Deep (6) 1/2 Inch And (6) Combination Side Knockouts (52171-S)
Lighting Supply
$45.00
Case Of 25, Southwire Garvin 4 Square Junction Box 2-1/8 Inch Deep (6) 1/2 Inch And (6) Combination Side Knockouts (52171-S)
Lighting Supply
$125.00
Case Of 10, Southwire Garvin 4 Square Junction Box 4 Inch Deep (8) 1 Inch Side Knockouts (52191-1)
Lighting Supply
60-day returns (most items)
$125.00
Case Of 10, Southwire Garvin 4 Square Junction Box 4 Inch Deep (8) 1 Inch Side Knockouts (52191-1)
Lighting Supply
$28.99
Qlvily 8 Packs 4 X 2 Inch Metal Electrical Box With Bracket, 1/2 Inch End Knockouts Electrical Box, Wood/Metal Stud Bracket Welded, Junction Box
Amazon.com
$28.99
Qlvily 8 Packs 4 X 2 Inch Metal Electrical Box With Bracket, 1/2 Inch End Knockouts Electrical Box, Wood/Metal Stud Bracket Welded, Junction Box
Amazon.com
$380.95
RACO 181 4 Square Box, 1-1/2 Deep, 3/4 Side Knockouts, Welded
Voomi Supply
$380.95
RACO 181 4 Square Box, 1-1/2 Deep, 3/4 Side Knockouts, Welded
Voomi Supply
$69.25
Case Of 25, Southwire Garvin 4 Square Junction Box 2-1/8 Inch Deep (8) 1 Inch Side Knockouts (52171-1)
Lighting Supply
$69.25
Case Of 25, Southwire Garvin 4 Square Junction Box 2-1/8 Inch Deep (8) 1 Inch Side Knockouts (52171-1)
Lighting Supply
$0.58
Garvin Plastic Knockout Bushing, Snap In, Star Configuration KOBS-50
FireFold
$0.58
Garvin Plastic Knockout Bushing, Snap In, Star Configuration KOBS-50
FireFold
$184.00
Case Of 25, Southwire Garvin 4 Inch Octagon Box 2-1/8 Deep 1/2 Inch Knockout Blank (54171-1/2BB)
Lighting Supply
$184.00
Case Of 25, Southwire Garvin 4 Inch Octagon Box 2-1/8 Deep 1/2 Inch Knockout Blank (54171-1/2BB)
Lighting Supply
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    Shop Knockouts On Electrical Boxes

    Sponsored
    $9.65
    Weatherproof Electrical Box NEMA And UL Listed | HD-24F
    Polycase
    30-day returns (most items)
    $9.65
    Weatherproof Electrical Box NEMA And UL Listed | HD-24F
    Polycase
    $22.74
    Outdoor Electrical Junction Box | NEMA 4X | WQ-38
    Polycase
    $22.74
    Outdoor Electrical Junction Box | NEMA 4X | WQ-38
    Polycase
    $106.99
    NEMA 4X Electrical Junction Box | Waterproof | WQ-68
    Polycase
    $106.99
    NEMA 4X Electrical Junction Box | Waterproof | WQ-68
    Polycase
    $30.57
    Plastic Electrical Junction Box | Waterproof | WQ-46
    Polycase
    $30.57
    Plastic Electrical Junction Box | Waterproof | WQ-46
    Polycase
    $9.27
    Plastic Electrical Junction Box| Made In USA | DC-46F
    Polycase
    30-day returns (most items)
    $9.27
    Plastic Electrical Junction Box| Made In USA | DC-46F
    Polycase
    $39.19
    Outdoor Electrical Junction Box | NEMA 4X | WQ-48
    Polycase
    $39.19
    Outdoor Electrical Junction Box | NEMA 4X | WQ-48
    Polycase
    $15.23
    Black Weatherproof Junction Box NEMA 4X And IP66 Rated | HD-45F
    Polycase
    $15.23
    Black Weatherproof Junction Box NEMA 4X And IP66 Rated | HD-45F
    Polycase
    $58.00
    RACO 232 4 in. Square Electrical Box, 2-1/8-Inch Deep, 1/2-In. And 3/4-In. Side Knockouts, Welded, Gray, 25-Pack
    Amazon.com
    $58.00
    RACO 232 4 in. Square Electrical Box, 2-1/8-Inch Deep, 1/2-In. And 3/4-In. Side Knockouts, Welded, Gray, 25-Pack
    Amazon.com
    $149.00
    Temco Hydraulic Knockout Punch Driver Electrical Conduit Hole KO Tool 3/4"-16
    Amazon.com
    Free shipping
    $149.00
    Temco Hydraulic Knockout Punch Driver Electrical Conduit Hole KO Tool 3/4"-16
    Amazon.com
    $11.97
    Raco Hubbell 680 2-Device, 2-1/8-Inch Deep, 1/2-Inch Side Knockouts 4-Inch Square Switch Box, Drawn, Silver,Gray
    Amazon.com
    $11.97
    Raco Hubbell 680 2-Device, 2-1/8-Inch Deep, 1/2-Inch Side Knockouts 4-Inch Square Switch Box, Drawn, Silver,Gray
    Amazon.com
    $260.50
    Case Of 25, Southwire Garvin 4 Square Blank Junction Box 2-1/8 Inch Deep No Knockouts (52171-BLNK)
    Lighting Supply
    $260.50
    Case Of 25, Southwire Garvin 4 Square Blank Junction Box 2-1/8 Inch Deep No Knockouts (52171-BLNK)
    Lighting Supply
    $11.30
    Hubbell-Raco 506 Switch Box In 3 X 2-Inch Gangable 2-1/2-Inch. Deep, Eight 1/2-Inch. Knockouts, Old Work, Plaster Ears, Gray Finish
    Amazon.com
    $11.30
    Hubbell-Raco 506 Switch Box In 3 X 2-Inch Gangable 2-1/2-Inch. Deep, Eight 1/2-Inch. Knockouts, Old Work, Plaster Ears, Gray Finish
    Amazon.com
    $15.43
    Taymac RLB100 Threaded LB Conduit Body, Die Cast Aluminum, Stamped Steel Cover, 1-Inch, Gray
    Amazon.com
    $15.43
    Taymac RLB100 Threaded LB Conduit Body, Die Cast Aluminum, Stamped Steel Cover, 1-Inch, Gray
    Amazon.com
    $62.57
    Pass And Seymour 20A 3-Wire Non-Metallic Back Box 3/4 Inch Knockout (PSBBN201W)
    Lighting Supply
    60-day returns (most items)
    $62.57
    Pass And Seymour 20A 3-Wire Non-Metallic Back Box 3/4 Inch Knockout (PSBBN201W)
    Lighting Supply
    $1.86
    Steel City 52151-3/4 4" Steel Square Box W/ 3/4" Knockout | Supplyhouse.Com
    SupplyHouse.com
    $1.86
    Steel City 52151-3/4 4" Steel Square Box W/ 3/4" Knockout | Supplyhouse.Com
    SupplyHouse.com
    $169.99
    TICONN Waterproof Electrical Junction Box IP67 ABS Plastic Enclosure With Hinged Cover With Mounting Plate, Wall Brackets, Cable Glands (Off-White,
    Amazon.com
    660
    Free shipping
    $169.99
    TICONN Waterproof Electrical Junction Box IP67 ABS Plastic Enclosure With Hinged Cover With Mounting Plate, Wall Brackets, Cable Glands (Off-White,
    Amazon.com
    $0.74
    Carlon B118A 18 Cubic Inch 1-Gang Nail-On New Work Non-Metallic Outlet Box | Supplyhouse.Com
    SupplyHouse.com
    3
    $0.74
    Carlon B118A 18 Cubic Inch 1-Gang Nail-On New Work Non-Metallic Outlet Box | Supplyhouse.Com
    SupplyHouse.com
    $19.99
    5-Pack 3/4" Single Gang Receptacle Outlet Box Extenders UL Listed - Screws (6-32 X 1.25") - Electrical Outlet Extender For Electrical Box And
    Amazon.com
    58
    $19.99
    5-Pack 3/4" Single Gang Receptacle Outlet Box Extenders UL Listed - Screws (6-32 X 1.25") - Electrical Outlet Extender For Electrical Box And
    Amazon.com