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 corrosion resistance. They are convenient and easy to use.”,”highlights”:[“For covering exposed knock-out holes in metal enclosures”,”Corrosion-resistant”,”Convenient and easy to use”