Alpha APG4B 4H X 1W Surface Back Box, Brown

The APG4B from Alpha is a 4H X 1W surface back box-brown. Requires MT4B series frame. The APG4B surface housing is designed to be used with the Alpha Communications® / S.T.R.™ modular series door entry stations and system annunciators. There are seven (7) configurations available in single and double-width varieties. The APG4B housing is designed to be used in conjunction with the MT series Modular Frame(s). For larger configurations, multiple APG4B housing and MT frames may be mounted alongside each other.