1/2 in. Knock-Out Seals (4-Pack)

Knock-Out Seals are designed to cover exposed knock-out holes in steel boxes and other metal enclosures. The 1/2 in. Knock-Out Seals (4-Pack) offer

RACO 1043B4 Knockout Seal, 3/4-Inch Trade Size, Steel, 4-Pack

Sigma ProConnex 1-1/4-in Zinc-plated Steel Knockout Seal Conduit Fittings in the Conduit Fittings department at

Sigma ProConnex 1/2-in Zinc-plated Steel Knockout Seal Conduit Fittings in the Conduit Fittings department at

Knock-Out Seals are designed to cover exposed knock-out holes in steel boxes and other metal enclosures. The 1/2 in. Knock-Out Seals (4-Pack) offer

1/2 in. Knock-Out Seals (4-Pack)

Electrical Box Knockout Plugs at

Sigma ProConnex 1/2-in Plastic Knockout Bushing Conduit Fittings in the Conduit Fittings department at

The knockout seal is ideal for electrical assemblies and can be used for covering knockout holes in electrical boxes The nylon knock-out seal features

The Hillman Group 58179 2-1/2-Inch Hole Nylon Knock Out Seal, Black, 2-Pack

Halex 2 in. Rigid Sealer Conduit Locknuts (2-Pack) 96186 - The Home Depot

Type S Knockout Seals with Screw & Bar - Set screw/bar type knockout seals are inserted in open box knockouts to protect exposed wires. Set screw/bar

Morris 21794 Type S Knockout Seal with Screw and Bar, 1-1/2, 1-Pack