Esquirla Pipe Draft Exhaust Fan Backdraft Damper Fine Workmanship Durable Leakproof Portable for Home Exhaust Fan Ducting Hose 120mm

Esquirla Pipe Draft Exhaust Fan Backdraft Damper Fine Workmanship Durable Leakproof Portable for Home Exhaust Fan Ducting Hose 120mm.Pipe draft exhaust fan is made of quality pp material, which is durable and sturdy, can be used for a long time.1. When the exhaust starts, the air pressure pushes the butterfly to open, and odor and exhaust is quickly discharged. 2. After the exhaust is completed, the pipeline will automatically close under the action of gravity.The check will always remain closed to prevent the exhaust, dust and odor from entering the room.The backdraft damper keeps odors and exhaust gases out of the house, prevent backflow.Practical can be closely attached to the wall, no leakage, and ensure good sealing performance.Practical Pipe Exhaust Fan. for Bathroom Ventilation Fan. Backdraft Damper for Kitchen Bathroom Exhaust Fan. Backflow Preventer s Duct Adaptor. Detachable Backdraft Damper Vent for Range Hood.