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Morris 1-in Plastic Knockout Plug for Electrical Boxes & Enclosures

Morris 21723
SKU MRS-21723
Morris' 1-in Plastic Knockout Plug seals unused knockout holes in electrical boxes and enclosures with fingertip pressure. Cost-effective alternative to steel snap-in blanks. Find it at HomElectrical!
Morris 1-in Plastic Knockout Plug for Electrical Boxes & Enclosures

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Morris' 1-in Plastic Knockout Plug seals unused knockout holes in electrical boxes and enclosures with fingertip pressure. Cost-effective alternative to steel snap-in blanks. Find it at HomElectrical!
  • Trade Size: 1-in.
  • Caps unused knockout holes in electrical boxes and enclosures.
  • Installs with simple fingertip pressure -- no tools needed.
  • Safer and less costly than steel snap-in blanks.
  • Made of durable low-density plastic.
  • Keeps installations clean and professional in appearance.

Morris 21723 Description

  • Trade Size: 1-in.
  • Caps unused knockout holes in electrical boxes and enclosures.
  • Installs with simple fingertip pressure -- no tools needed.
  • Safer and less costly than steel snap-in blanks.
  • Made of durable low-density plastic.
  • Keeps installations clean and professional in appearance.
Get FREE shipping on eligible order of $99+
Free Shipping Eligible
$0.16Each
In Stock-

Ships between 06/15/2026 - 06/16/2026

Product Specifications

Part Number21723
Color / FinishGray
MaterialPolyethylene
Product Dimensions1.5-in X 1.5-in X 0.3-in
Weight0.02-lb
UPC601986217231

Manufacturer Description

Knock Out Fillers 1

Resources & Download

A PDF viewer is required to view this product's information. Download Adobe Acrobat Viewer

Prop65
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.
Morris' 1-in Plastic Knockout Plug seals unused knockout holes in electrical boxes and enclosures with fingertip pressure. Cost-effective alternative to steel snap-in blanks. Find it at HomElectrical!
Morris 1-in Plastic Knockout Plug for Electrical Boxes & Enclosures
Get FREE shipping on eligible order of $99+
Free Shipping Eligible
$0.16Each
In Stock-

Ships between 06/15/2026 - 06/16/2026

Morris 21723 Description

  • Trade Size: 1-in.
  • Caps unused knockout holes in electrical boxes and enclosures.
  • Installs with simple fingertip pressure -- no tools needed.
  • Safer and less costly than steel snap-in blanks.
  • Made of durable low-density plastic.
  • Keeps installations clean and professional in appearance.

Product Specifications

Part Number21723
Color / FinishGray
MaterialPolyethylene
Product Dimensions1.5-in X 1.5-in X 0.3-in
Weight0.02-lb
UPC601986217231

Manufacturer Description

Knock Out Fillers 1

Resources & Download

A PDF viewer is required to view this product's information. Download Adobe Acrobat Viewer

Prop65
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.

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