The Hillman Group 58178 2-Inch Hole Grey Nylon Knock Out Seal, 3-Pack
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The Hillman Group 58178 2-Inch Hole Grey Nylon Knock Out Seal, 3-Pack
Used for covering knockout holes in electrical boxes
No tools required for installation
Included variants fit punched or drilled holes ranging from 7/8" to 2-1/2" in diameter
Made of high-strength nylon
Corrosion resistant
Nylon Knockout Seals effectively plug electrical knock-outs. They are molded from 6/6 Nylon, in a gray color to resemble galvanized steel. They are easily installed and provide a long-lasting seal.