They allow families or groups to open both doors and pass between the two rooms.
Adjoining room door lock.
The adjoining door consists of two doors each with a spring loaded latch and a dead bolt with handles only on the side facing the respective room.
When the rooms are occupied by separate groups the doors can be locked to maintain security and privacy.
Sound control system for communicating adjoining doors this system is designed to create a sound control on a pair of communicating internally adjoining doors.
This requires the occupants of both rooms to unlock their door to allow access between the rooms.
Connecting doors also known as communicating doors are often used between adjoining rooms in hotels or cruise ships.
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