Morris 21797 Type S With Screw and Bar Knockout Seal, 3"

This 3" Type S With Screw and Bar Knockout Seal (Morris cat. 21797) is made for closing an unused knockout opening. Galvanized Steel construction gives it lasting durability in the field.

Key Features

• 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

Specifications

Applications

Used to close knockouts left open in boxes, panels, and enclosures.

Installation

Snap or thread the plug into the open knockout.