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L.H. Dottie KO100 knockout seal carbon steel box

L.H. DOTTIE

L.H. DOTTIE KO100 Knockout Seal Carbon Steel Box

SKU CH-64BW-4SGK4

Carbon steel knockout seal closes unused conduit openings, supplied in a 100-piece box

  • Product typeElectrical Boxes & Covers
  • Carbon steel construction resists corrosion in harsh environments
  • Knockout seal closes unused openings to maintain enclosure rating
  • Box packaging keeps seals organised and protected on site
  • DOTTIE brand trusted by electricians for reliable components
  • Model KO100 fits standard knockout dimensions for quick installation

Knockout seal for conduit boxes

The L.H. DOTTIE KO100 is a carbon steel knockout seal designed to close unused openings in electrical boxes and enclosures. It suits electricians and installers who need a secure, code-compliant way to blank off a 100 trade-size knockout during rough-in or retrofit work.

Fits standard 100 trade-size knockouts

The seal presses into a standard 100 knockout without tools and locks in place with integral tabs. It requires a compatible steel or non-metallic box with a matching knockout diameter and frees the installer from fabricating a custom cover plate or using tape and plugs that can fall out.

Holds firm under vibration and thermal cycling

Carbon steel construction resists deformation when the enclosure expands, contracts or vibrates in service. The friction-fit tabs maintain retention without a separate screw or nut, so the seal stays seated through repeated heating and cooling cycles in commercial and industrial environments.

How it compares

Measured against everything we stock in Electrical Conduit & Fittings, at today’s prices. Recalculated every night.

Price $106.99
Pricier than about 87% of the 1,290 comparable items (median $28.99).

Specifications

Product
Brand nameDOTTIE
Product typeElectrical Boxes & Covers

Questions about this item

What size knockout does the KO100 seal close?

The KO100 knockout seal is designed for 100 trade-size openings in carbon steel electrical boxes.

Does the carbon steel construction run hot when enclosing live conductors all day?

Carbon steel acts as a heat sink, so the seal stays at ambient temperature during continuous operation.

Which conduit system must already be in place for this seal to work?

You need a carbon steel box with a 100 trade-size knockout ready for the seal to thread into.

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