Talk-A-Phone Co.
Wireless ECO TOWER emergency phone tower can be installed in remote areas with a cellular or VoIP wireless interface. Tower supports solar and day-night switching power interfaces. Fits any Talk-A-Phone analog or VoIP flush-mounting emergency or assistance phone. Tower is made of lightweight aluminum and can be installed by one person.
Greenheck: Model IV
Armstrong World Industries: Axiom Design Troughs
Focal Point: Score 2 Suspended and Surface Mount
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Russelectric: RTSMV Automatic Transfer Switch