6" Backdraft Damper Ducting Insert Backflow Preventer Draft Blocker w Clamp DC Worm Gear Motors beautiful and durable
USD20.23
USD66.23
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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Oct 30 - Nov 4
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Description
6" Backdraft Damper Ducting Insert Backflow Preventer Draft Blocker w Clamp DC Worm Gear Motors beautiful and durable beautiful and durable 12"(L*W*H) The backdraft damper is used to prevent the backflow of smoke or exhaust gas through air duct when the ventilation fan is off Outer Diameter of Interface: 149 mm 5
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