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Hon&Guan 4 inch Blocker Backdraft Damper, 4 inch Ducting Draft Blocker Insert Backflow Preventer Dryer Vent Hose Duct Draft

Hon&Guan 4 inch Blocker Backdraft Damper, 4 inch Ducting Draft Blocker Insert Backflow Preventer Dryer Vent Hose Duct Draft

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$42.36striked off

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High temperature resistance Perfect for Heating. cooling or air conditioning, the shutter is able to withstand temperatures up to 140°F, corrosion resistant, strong and durable. It can be safely used in range hoods, bathroom fans, kitchen and other home HVAC applications. Essential for HVAC ventilation. High-Quality Materials The backdraft damper and the flap leaves is made of a Galvanized steel, the axis are made of aluminum, while the spring are made of carbon steel. One-way Airflow Ducting Insert Back-flow valve with 1 spring-loaded wings prevents the reverse airflow movement through the ventilation duct when the ventilation system is turned off. Perfect details It can be opened easily when air flow is obtained and spring-loaded to close when your fan is turned off.

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Item# : SPM9282395129
Model # : iSH09-M463705mn

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