The Alpha Communications® AP543 adapter plates are designed specifically to cover existing oversized apartment intercom back boxes and other existing wall openings, for mounting of the IS204 or IS543 partment intercom station(s).
Heavy-duty molded hi-impact plastic
Easy Installation
Decorator White Color
Rugged and Good-Looking
Large size neatly covers many existing wall openings
Works perfectly with the IS204 or IS543 universal apartment intercom stations