ISONE� 2.1 circular
ISONE® 2.1 dampers are simple to select: a single model for all partitions and all fire resistance levels.
ISONE� 2.1 rectangular
ISONE� 2.1 Europe circular
ISONE 2 dampers are easy to choose: a single model for all partition walls and all fire protection ratings.
ISONE� 2.1 Europe rectangular
