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How is the 100 series from Glynn Johnson different from the 100 ADJ series?

The basic units are similar.  The ADJ has a 12" long track that is mounted in the frame to allow the degree of opening to be selected in the field anywhere from 85 to 110 degrees, where the standard 100 series, the degree of opening must be selected when the door & frame are prepared and cannot be changed without reprepping the door and frame. The actual arm and track lengths are different between the different sizes and between the standard 100 series and the 100ADJ series. 

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