Morris Type S with Screw & Bar Knockout Seals

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 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.