Morris Products 21803, Steel Snap-In Blanks 1-1/4", Use to Close Off Unused Openings in Boxes and Panel Boards

Steel Snap-In Blank – 1-1/4" Knockout Closure (Morris 21803)

This 1-1/4" steel snap-in blank is engineered to close unused knockout openings in metal electrical boxes, panels, and enclosures with a secure snap-fit design. Built from rugged steel, it installs quickly without separate hardware, providing a professional, finished look while helping shield the enclosure interior from dust, debris, and foreign objects.

Key Features

• Purpose: Closes unused 1-1/4" trade size knockout openings on electrical boxes and panelboards
• Material: All-steel construction for strength and long-lasting performance
• Design: Snap-in retention clips for fast, tool-free installation
• Finish: Metallic steel finish compatible with standard electrical enclosures
• Application: Ideal for commercial, industrial, and residential wiring systems

Typical Applications

• Junction and outlet boxes
• Panelboards and load centers
• Metal electrical cabinets and enclosures
• Service equipment and control panels

Installation Overview

To install, align the blank with the unused 1-1/4" trade size knockout opening and press firmly until the retention tabs engage. The snap-fit clips hold the blank securely in place, eliminating the need for screws or additional hardware and reducing installation time.

Important Considerations

• Trade Size Match: Always match the blank to the knockout’s trade size (1-1/4"), not just the measured opening diameter.
• Steel Benefits: Steel snap-in blanks are preferred in demanding environments where strength and a professional finish matter most.