Type S Knockout Seals with Screw & Bar 4" - Set screw/bar type knockout seals are inserted in open box knockouts to protect exposed wires.

Type S with Screw & Bar Knockout Seals 4" features include:

• Set screw/bar type knockout seals are inserted in open box knockouts to protect exposed wires
• Used in standard, air tight or dust tight applications
• Pre-assembled screw and backer bar slides on open knockout holes without removing box devices or covers
• Steel Galvanized
• Order Qty of 1 = 1 Piece

Below is more info on our Type S with Screw & Bar Knockout Seals 4"