Legrand 28 inch modular media enclosure is on sale at some Lowes stores for $17.24, normally $69.
Brick Seek: https://brickseek.com/lowes-inven…u=50110
https://www.lowes.com/pd/Legrand-…r/50110942
Rugged 28-inch steel enclosure for new and retrofit projects
Connection point for phone, video, data, audio, intercom, and camera systems
Surface or recessed mounting