BACK DRAFT SHUTTER
Back draft shutters are commonly used with inline exhaust fan systems. Galvanized steel housing and aluminium sheet shutters.
The shutters open with the pressure generated by air stream then closes automatically.
Back draft shutters top air flowing in the “back” direction, save energy, as well as block unwanted light & odor when fan is not in use.
BACK DRAFT SHUTTER 100mm - 300mm
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