Alpha APG3B 3H X 1W Surface Back Box-Brown

The Alpha APG3B 3H x 1W surface back box in brown is an aluminum housing designed for use with Alpha Communications® / S.T.R.™ modular door entry stations and system annunciators. It requires the MT3B series frame for installation.

This back box supports multiple configurations, including seven options in single and double-width sizes. For larger setups, multiple MT frames can be mounted side by side. The housing is offered in three finishes - Titanium, White, and Brown - to match the corresponding frames.