4" 1/2" Knockout Octagon Cover

Southwire Octagon Steel Box Cover

This Octagon Flat Blank Cover is used to close off 4 in. octagon boxes as a junction box, for adding wiring devices, or mounting lighting fixtures. The keyhole mounting holes provide easy installation. The cover is made of durable steel material. Additionally, the zinc-plated material provides long-term durability.
Has a 1/2 in. knockout
Designed for multiple functions
Pre-galvanized steel