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Knockout Seals (Screw/Bar Type) Knockout Seals (Screw/Bar Type)
Application:
These screw/bar type knockout seals are inserted in discontinued open box knockouts to protect exposed wires. They are used in standard, air tight or dust tight applications when they have a gasket.
Advantages::
Garvin Industries’ one piece pre assembled screw and backer bar slides on open knockout holes without removing box devices or covers.
Field Names::
Closure plugs, knockout plug, knockout seal, KO seal, knockout filler.

Click on links below to view more details about the products. 24 Styles Available Below
Image Item Description Product Specifications
1/2" Steel, Screw/Bar Type Knockout Seal Item #: KOS-50
1/2" Steel, Screw/Bar Type Knockout Seal
1/2" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air ti (more....)

QTY:  
Our Price:  
$ 0.49

 
 
1/2" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-50-VT
1/2" Gasketed Steel, Screw/Bar Type Knockout Seal
1/2" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standar (more....)

QTY:  
Our Price:  
$ 2.79

 
 
3/4" Steel, Screw/Bar Type Knockout Seal Item #: KOS-75
3/4" Steel, Screw/Bar Type Knockout Seal
3/4" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air ti (more....)

QTY:  
Our Price:  
$ 0.59

 
 
3/4" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-75-VT
3/4" Gasketed Steel, Screw/Bar Type Knockout Seal
3/4" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standar (more....)

QTY:  
Our Price:  
$ 3.99

 
 
1" Steel, Screw/Bar Type Knockout Seal Item #: KOS-100
1" Steel, Screw/Bar Type Knockout Seal
1" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air tigh (more....)

QTY:  
Our Price:  
$ 0.79

 
 
1" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-100-VT
1" Gasketed Steel, Screw/Bar Type Knockout Seal
1" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, (more....)

QTY:  
Our Price:  
$ 4.59

 
 
1-1/4" Steel, Screw/Bar Type Knockout Seal Item #: KOS-125
1-1/4" Steel, Screw/Bar Type Knockout Seal
1-1/4" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air (more....)

QTY:  
Our Price:  
$ 0.99

 
 
1-1/4" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-125-VT
1-1/4" Gasketed Steel, Screw/Bar Type Knockout Seal
1-1/4" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in stand (more....)

QTY:  
Our Price:  
$ 5.28

 
 
1-1/2" Steel, Screw/Bar Type Knockout Seal Item #: KOS-150
1-1/2" Steel, Screw/Bar Type Knockout Seal
1-1/2" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air (more....)

QTY:  
Our Price:  
$ 1.49

 
 
1-1/2" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-150-VT
1-1/2" Gasketed Steel, Screw/Bar Type Knockout Seal
1-1/2" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in stand (more....)

QTY:  
Our Price:  
$ 5.79

 
 
2" Steel, Screw/Bar Type Knockout Seal Item #: KOS-200
2" Steel, Screw/Bar Type Knockout Seal
2" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air tigh (more....)

QTY:  
Our Price:  
$ 1.79

 
 
2" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-200-VT
2" Gasketed Steel, Screw/Bar Type Knockout Seal
2" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, (more....)

QTY:  
Our Price:  
$ 6.89

 
 
2-1/2" Steel, Screw/Bar Type Knockout Seal Item #: KOS-250
2-1/2" Steel, Screw/Bar Type Knockout Seal
2-1/2" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air (more....)

QTY:  
Our Price:  
$ 2.19

 
 
2-1/2" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-250-VT
2-1/2" Gasketed Steel, Screw/Bar Type Knockout Seal
2-1/2" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in stand (more....)

QTY:  
Our Price:  
$ 7.99

 
 
3" Steel, Screw/Bar Type Knockout Seal Item #: KOS-300
3" Steel, Screw/Bar Type Knockout Seal
3" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air tigh (more....)

QTY:  
Our Price:  
$ 3.49

 
 
3" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-300-VT
3" Gasketed Steel, Screw/Bar Type Knockout Seal
3" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, (more....)

QTY:  
Our Price:  
$ 11.49

 
 
3-1/2" Steel, Screw/Bar Type Knockout Seal Item #: KOS-350
3-1/2" Steel, Screw/Bar Type Knockout Seal
3-1/2" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air (more....)

QTY:  
Our Price:  
$ 4.59

 
 
3-1/2" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-350-VT
3-1/2" Gasketed Steel, Screw/Bar Type Knockout Seal
3-1/2" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in stand (more....)

QTY:  
Our Price:  
$ 22.99

 
 
4" Steel, Screw/Bar Type Knockout Seal Item #: KOS-400
4" Steel, Screw/Bar Type Knockout Seal
4" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air tigh (more....)

QTY:  
Our Price:  
$ 6.89

 
 
4" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-400-VT
4" Gasketed Steel, Screw/Bar Type Knockout Seal
4" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, (more....)

QTY:  
Our Price:  
$ 31.99

 
 
5" Steel, Screw/Bar Type Knockout Seal Item #: KOS-500
5" Steel, Screw/Bar Type Knockout Seal
5" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air tigh (more....)

QTY:  
Our Price:  
$ 16.99

 
 
5" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-500-VT
5" Gasketed Steel, Screw/Bar Type Knockout Seal
5" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, (more....)

QTY:  
Our Price:  
$ 44.89

 
 
6" Steel, Screw/Bar Type Knockout Seal Item #: KOS-600
6" Steel, Screw/Bar Type Knockout Seal
6" steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, air tigh (more....)

QTY:  
Our Price:  
$ 22.99

 
 
6" Gasketed Steel, Screw/Bar Type Knockout Seal Item #: KOS-600-VT
6" Gasketed Steel, Screw/Bar Type Knockout Seal
6" gasketed steel, screw/bar type knockout seals are inserted in discontinued, open box knockouts to protect exposed wires. They are used in standard, (more....)

QTY:  
Our Price:  
$ 51.79

 
 
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