Photo 1 of - 4" inch Plastic Inline Backdraft Damper. Connect Exhaust or Bathroom air Dryer and ducting with Backdraft Damper. HVAC. Heating. Cooling. Kitchen and Bathroom Applications.

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Photo 1 of - 4" inch Plastic Inline Backdraft Damper. Connect Exhaust or Bathroom air Dryer and ducting with Backdraft Damper. HVAC. Heating. Cooling. Kitchen and Bathroom Applications.Photo 2 of - 4" inch Plastic Inline Backdraft Damper. Connect Exhaust or Bathroom air Dryer and ducting with Backdraft Damper. HVAC. Heating. Cooling. Kitchen and Bathroom Applications.