Alpha OH194 4 Gang Flush Housing - Steel

4 Gang Flush Housing - Steel Use OF194 Series Panel Frame. The Alpha Communications® / TekTone OH194 backbox/housings are made of heavy gauge galvanized steel. They designed to be used with aluminum frames.These backboxes/housings a variety apartment entry intercom and video lobby modules, as well specialty annunciator modules. Electrical knockouts provided on top, bottom back these units.