Shop electrical box knockout plugs

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$0.82
Raco Knockout Plug: 1/2 in For Conduit Size, Steel, Silver, Junction Boxes/Panel Boards Model: 1042
Grainger
$0.82
Raco Knockout Plug: 1/2 in For Conduit Size, Steel, Silver, Junction Boxes/Panel Boards Model: 1042
Grainger
$1.42
Plug, 1/2" Knockout Nylon
Wood-Mizer (US)
$1.42
Plug, 1/2" Knockout Nylon
Wood-Mizer (US)
$0.89
Raco Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Junction Boxes/Panel Boards Model: 1043
Grainger
$0.89
Raco Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Junction Boxes/Panel Boards Model: 1043
Grainger
$13.99
20PCS Seal Electrical Box Knockout In 2 Sizes, Removable Round Steel Instant Knockout Plugs For Closure Unused Electric Box Outlets Holes, Snug Pocket
Amazon.com
$13.99
20PCS Seal Electrical Box Knockout In 2 Sizes, Removable Round Steel Instant Knockout Plugs For Closure Unused Electric Box Outlets Holes, Snug Pocket
Amazon.com
$103.00
Bridgeport Knockout Plug: 1/2 in For Conduit Size, Steel, Silver, Electrical Boxes And Enclosures Model: 1691
Grainger
$103.00
Bridgeport Knockout Plug: 1/2 in For Conduit Size, Steel, Silver, Electrical Boxes And Enclosures Model: 1691
Grainger
$118.00
Bridgeport Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Electrical Boxes And Enclosures Model: 1692
Grainger
1
$118.00
Bridgeport Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Electrical Boxes And Enclosures Model: 1692
Grainger
$24.99
OHLECTRIC 4-Pack 4" Welded Square Electrical Box With 1/2 & 3/4-Inch Knockouts | 2-1/8" Deep Junction Box, Made Of Galvanized Steel | Ideal For
Amazon.com
$24.99
OHLECTRIC 4-Pack 4" Welded Square Electrical Box With 1/2 & 3/4-Inch Knockouts | 2-1/8" Deep Junction Box, Made Of Galvanized Steel | Ideal For
Amazon.com
$0.49
Garvin Southwire Topaz 1 Inch Knockout Plug (Ko52)
Lite Store USA
$0.49
Garvin Southwire Topaz 1 Inch Knockout Plug (Ko52)
Lite Store USA
$1.42
R.W. Beckett 2139 Electrical Knockout Hole Plug | Supplyhouse.Com
SupplyHouse.com
$1.42
R.W. Beckett 2139 Electrical Knockout Hole Plug | Supplyhouse.Com
SupplyHouse.com
$1.95
1452 Thomas & Betts Knockout Plug
Standard Electric Supply Co.
$1.95
1452 Thomas & Betts Knockout Plug
Standard Electric Supply Co.
$3.28
Sigma Engineered Solutions 0.5-In Multiple Colors/Finishes Plastic Electrical Box Knockout Plug One_Size | 14051
Lowe's
6
$3.28
Sigma Engineered Solutions 0.5-In Multiple Colors/Finishes Plastic Electrical Box Knockout Plug One_Size | 14051
Lowe's
$2.88
Hubbell 4 -Pack 0.5-In Gray Metal Electrical Box Knockout Plug One_Size | 5269-0
Lowe's
$2.88
Hubbell 4 -Pack 0.5-In Gray Metal Electrical Box Knockout Plug One_Size | 5269-0
Lowe's
$1.23
Bridgeport Fittings 1692 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
1
$1.23
Bridgeport Fittings 1692 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$2.30
Bridgeport Fittings 1693 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$2.30
Bridgeport Fittings 1693 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$0.49
Topaz Electric 1/2" Steel Knockout Plug KO50
DkHardware.com
$0.49
Topaz Electric 1/2" Steel Knockout Plug KO50
DkHardware.com
$5.39
Bridgeport Fittings 1696 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$5.39
Bridgeport Fittings 1696 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$6.39
$8.56
5710 Thomas & Betts Liquidtight Knockout Plug
Standard Electric Supply Co.
25% off
$6.39
$8.56
5710 Thomas & Betts Liquidtight Knockout Plug
Standard Electric Supply Co.
$0.62
Topaz Electric 3/4" Steel Knockout Plug KO51
DkHardware.com
$0.62
Topaz Electric 3/4" Steel Knockout Plug KO51
DkHardware.com
$4.50
Bridgeport Fittings 1695 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$4.50
Bridgeport Fittings 1695 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$2.93
Bridgeport Fittings 1694 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$2.93
Bridgeport Fittings 1694 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$31.54
Gardner Bender 100 -Pack 1-In Red Plastic Electrical Box Knockout Plug One_Size | SB1-100
Lowe's
$31.54
Gardner Bender 100 -Pack 1-In Red Plastic Electrical Box Knockout Plug One_Size | SB1-100
Lowe's
$2.58
Sigma Engineered Solutions 0.5-In Gray Metal Electrical Box Knockout Plug One_Size | 14050
Lowe's
26
$2.58
Sigma Engineered Solutions 0.5-In Gray Metal Electrical Box Knockout Plug One_Size | 14050
Lowe's
$30.70
36PCS Knockout Seal Electrical Box Plugs 1/2" Pipe Round Steel Removable Seal
eBay
Free shipping
$30.70
36PCS Knockout Seal Electrical Box Plugs 1/2" Pipe Round Steel Removable Seal
eBay
$558.00
Eiko VP-KOPLUG-12-N 1/2" Sealing Knockout Plug With Nut, Plastic BY BUYRITE ELECTRIC
BuyRite Electric
$558.00
Eiko VP-KOPLUG-12-N 1/2" Sealing Knockout Plug With Nut, Plastic BY BUYRITE ELECTRIC
BuyRite Electric
$6.41
Thomas & Betts 1-1/4" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$6.41
Thomas & Betts 1-1/4" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$1.07
Bridgeport Fittings 1691 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$1.07
Bridgeport Fittings 1691 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$64.99
Box Of 26 Thomas & Betts 5711 Neoprene Liquidtight Knockout Hole Plug
eBay
Free shipping
$64.99
Box Of 26 Thomas & Betts 5711 Neoprene Liquidtight Knockout Hole Plug
eBay
$1,000.00
Bridgeport Fittings 9893 1" Plastic Knockout Plugs - Enclosure Sealing Solution
ZenSupply
$1,000.00
Bridgeport Fittings 9893 1" Plastic Knockout Plugs - Enclosure Sealing Solution
ZenSupply
$2.11
Thomas & Betts 1/2" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$2.11
Thomas & Betts 1/2" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$8.36
Thomas & Betts 1-1/2" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$8.36
Thomas & Betts 1-1/2" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$2.58
Thomas & Betts 3/4" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$2.58
Thomas & Betts 3/4" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$14.42
Thomas & Betts 2" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$14.42
Thomas & Betts 2" Conduit, Electrical Enclosure Thermoplastic Knockout Plug For Use With Rigid/Imc Conduit, Csa File 4484/Csa Lr589/Nfpa 70/Rohs
Penn Tool Co
$2.57
$2.77
Thomas & Betts 1452 | Plug, Knockout
AllDataResource.com
$2.57
$2.77
Thomas & Betts 1452 | Plug, Knockout
AllDataResource.com
$7.89
Knockout Plug, Nylon, Locking Box Type
Zoro.com
$7.89
Knockout Plug, Nylon, Locking Box Type
Zoro.com
$5.87
BWF Outlet Box 5-Knockout 5-1/2 in Metal White Powder-Coated RB-5WV
DkHardware.com
1
$5.87
BWF Outlet Box 5-Knockout 5-1/2 in Metal White Powder-Coated RB-5WV
DkHardware.com
$37.50
Case Of 50, Southwire TOPAZ 1-1/2 Inch Knockout Plug (KO54)
Lighting Supply
$37.50
Case Of 50, Southwire TOPAZ 1-1/2 Inch Knockout Plug (KO54)
Lighting Supply
Remove Electrical Box Knockout
2:37
Remove Electrical Box Knockout
27.3K viewsOct 31, 2023
YouTubeHouseBarons
How to Remove Knock-Outs from Electric Box QO & Homeline Load Centers | Knockout Hole Punch
2:39
Find in video from 00:46Starting with Small Knock
How to Remove Knock-Outs from Electric Box QO & Homeline Load …
255.2K viewsMay 11, 2018
YouTubeSchneider Electric
How To Remove Knock Outs From A Electrical Junction Box
3:07
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How To Remove Knock Outs From A Electrical Junction Box
88K viewsJan 3, 2021
YouTubeMountaineer Outdoors
How to Remove a "Knock Out" from an Electrical Box
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wikiHow
How To Fill Missing Knock Outs In Electrical Boxes
0:16
How To Fill Missing Knock Outs In Electrical Boxes
7.7K viewsFeb 9, 2023
YouTubeRackATiers
Non-metallic enclosure knock-out instructions
1:23
Find in video from 00:49Punching Out the Knockout
Non-metallic enclosure knock-out instructions
39.5K viewsDec 17, 2015
YouTubeFibox Enclosures
12 Pcs Knockout Seal Electrical Box 3/4 Inch Knockout Plugs Round Steel Removable Seal Cap for Closure Unused Box Outlets, Compatible with Size of The Conduit Pipe
0:25
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Mar 20, 2024
amazon
Metal Vs Plastic Electrical Boxes | Avoid This Common DIY Mistake
13:21
Metal Vs Plastic Electrical Boxes | Avoid This Common DIY Mistake
1.1M viewsSep 2, 2023
YouTubeEveryday Home Repairs
Tandefio 12 Pieces 1/2 Inch Electrical Box Knockout Plugs Metal Knockout Seal with Screw and Bar Cover Unused Holes in Electrical Boxes Round Steel Removable Seal for Closure Unused Box Outlets
0:26
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Jun 18, 2024
amazon
4 Pro Methods for Wiring Metal Junction Boxes Like a Master Electrician!
13:12
4 Pro Methods for Wiring Metal Junction Boxes Like a Master Ele…
205.2K viewsJan 31, 2025
YouTubeEveryday Home Repairs
Exterior Electrical Outlet Box DIY Install on Stucco with GFCI & Weatherproof Cover
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15.2K views10 months ago
YouTubeVincent Stevenson
Electrical Hack: Easiest Way to Remove a KO from a Box!
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Electrical Hack: Easiest Way to Remove a KO from a Box!
6K views9 months ago
YouTubeEl Electrician
What Wire Connectors Should You Use | Romex Into Metal Box
10:14
Find in video from 01:28Knockout Knockout Technique
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YouTubeEveryday Home Repairs
Save HOURS Cutting Out Electrical Box Holes (Cutouts) in DRYWALL!
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YouTubeMancycle DIY
Home Inspector Finds Breaker Box Missing Knockout Covers
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Home Inspector Finds Breaker Box Missing Knockout Covers
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YouTubeHome Standards Inspection Services
How to Use the Electric Knockout Tool
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How to Use the Electric Knockout Tool
12.2K viewsJun 28, 2022
YouTubeASC Process Systems
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YouTubeEric Brady
2 Most Common Issues DIYers Make With Metal Electrical Boxes
10:33
2 Most Common Issues DIYers Make With Metal Electrical Boxes
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YouTubeEveryday Home Repairs
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2:42
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120K viewsApr 15, 2020
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7:44
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YouTubeTom Richardson
How to Remove Knockout from Electrical Box
0:22
How to Remove Knockout from Electrical Box
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IDEAL Can-Snap™ Non-Metallic Box Connectors
1:12
IDEAL Can-Snap™ Non-Metallic Box Connectors
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3:52
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The EASIEST way to Remove Knockouts
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The EASIEST way to Remove Knockouts
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See more

Shop electrical box knockout plugs

Sponsored
About our ads
$0.82
Raco Knockout Plug: 1/2 in For Conduit Size, Steel, Silver, Junction Boxes/Panel Boards Model: 1042
Grainger
$0.82
Raco Knockout Plug: 1/2 in For Conduit Size, Steel, Silver, Junction Boxes/Panel Boards Model: 1042
Grainger
$1.42
Plug, 1/2" Knockout Nylon
Wood-Mizer (US)
$1.42
Plug, 1/2" Knockout Nylon
Wood-Mizer (US)
$0.89
Raco Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Junction Boxes/Panel Boards Model: 1043
Grainger
$0.89
Raco Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Junction Boxes/Panel Boards Model: 1043
Grainger
$13.99
20PCS Seal Electrical Box Knockout In 2 Sizes, Removable Round Steel Instant Knockout Plugs For Closure Unused Electric Box Outlets Holes, Snug Pocket
Amazon.com
$13.99
20PCS Seal Electrical Box Knockout In 2 Sizes, Removable Round Steel Instant Knockout Plugs For Closure Unused Electric Box Outlets Holes, Snug Pocket
Amazon.com
$103.00
Bridgeport Knockout Plug: 1/2 in For Conduit Size, Steel, Silver, Electrical Boxes And Enclosures Model: 1691
Grainger
$103.00
Bridgeport Knockout Plug: 1/2 in For Conduit Size, Steel, Silver, Electrical Boxes And Enclosures Model: 1691
Grainger
$118.00
Bridgeport Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Electrical Boxes And Enclosures Model: 1692
Grainger
1
$118.00
Bridgeport Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Electrical Boxes And Enclosures Model: 1692
Grainger
$24.99
OHLECTRIC 4-Pack 4" Welded Square Electrical Box With 1/2 & 3/4-Inch Knockouts | 2-1/8" Deep Junction Box, Made Of Galvanized Steel | Ideal For
Amazon.com
$24.99
OHLECTRIC 4-Pack 4" Welded Square Electrical Box With 1/2 & 3/4-Inch Knockouts | 2-1/8" Deep Junction Box, Made Of Galvanized Steel | Ideal For
Amazon.com
$0.49
Garvin Southwire Topaz 1 Inch Knockout Plug (Ko52)
Lite Store USA
$0.49
Garvin Southwire Topaz 1 Inch Knockout Plug (Ko52)
Lite Store USA
$1.42
R.W. Beckett 2139 Electrical Knockout Hole Plug | Supplyhouse.Com
SupplyHouse.com
$1.42
R.W. Beckett 2139 Electrical Knockout Hole Plug | Supplyhouse.Com
SupplyHouse.com
$1.95
1452 Thomas & Betts Knockout Plug
Standard Electric Supply Co.
$1.95
1452 Thomas & Betts Knockout Plug
Standard Electric Supply Co.
$3.28
Sigma Engineered Solutions 0.5-In Multiple Colors/Finishes Plastic Electrical Box Knockout Plug One_Size | 14051
Lowe's
6
$3.28
Sigma Engineered Solutions 0.5-In Multiple Colors/Finishes Plastic Electrical Box Knockout Plug One_Size | 14051
Lowe's
$2.88
Hubbell 4 -Pack 0.5-In Gray Metal Electrical Box Knockout Plug One_Size | 5269-0
Lowe's
$2.88
Hubbell 4 -Pack 0.5-In Gray Metal Electrical Box Knockout Plug One_Size | 5269-0
Lowe's
$1.23
Bridgeport Fittings 1692 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
1
$1.23
Bridgeport Fittings 1692 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$2.30
Bridgeport Fittings 1693 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$2.30
Bridgeport Fittings 1693 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$0.49
Topaz Electric 1/2" Steel Knockout Plug KO50
DkHardware.com
$0.49
Topaz Electric 1/2" Steel Knockout Plug KO50
DkHardware.com
$5.39
Bridgeport Fittings 1696 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$5.39
Bridgeport Fittings 1696 Knockout Plugs - Zinc Plated Steel Electrical Enclosure Caps
ZenSupply
$6.39
$8.56
5710 Thomas & Betts Liquidtight Knockout Plug
Standard Electric Supply Co.
25% off
$6.39
$8.56
5710 Thomas & Betts Liquidtight Knockout Plug
Standard Electric Supply Co.
$0.62
Topaz Electric 3/4" Steel Knockout Plug KO51
DkHardware.com
$0.62
Topaz Electric 3/4" Steel Knockout Plug KO51
DkHardware.com