$4.76 (as of 04/10/2018 20:30 PDT details )
Features:
- Type S Knockout Seals with Screw amp 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