Backdraft Damper
$15.99
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[MATERIAL]: The blades are made of aluminum alloy[SIZE]: Duct splice ring diameter: 4/6/8IN[EASY TO USE]: According to the demand, the pipeline can be spliced to form the exhaust and air intake system[ROTATING BLADE]: By adjusting the blade angle, the ventilation flow can be controlled, and it can also be used for wind protection[APPLICATION]: It is used in kitchen, factory, food factory and other areas to form intake pipe or exhaust pipe system
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