BESTonZON 5 Pairs Black Plastic Check Valve Flapper Blades for Exhaust Fans and Range Hoods, Kitchen Ventilation Backflow Protection with Optimal Airflow Efficiency, Replacement Duct Damper

Package List 5 x pairs of Backdraft Damper Flap Characteristics -Color:Black -Installation: The exhaust duct flap valve is designed for user friendly installation on any mainstream range hood duct, no special tools or professional help needed One Way Ventilation Flapper -Material:Plastic -Reliable Retrofit: As a range hood duct flap, this replacement damper blade is perfect for new installations or upgrading worn range hood exhaust dampers in older homes Range Hood Flapper Blade -Enhanced Air Quality: The duct fume prevention flapper eliminates the risk from external fume, acting as a robust exhaust base Backflow Damper Insert -Product Info: Check valve blade -Size:14.50X14.00X0.30cm/5.71X5.51X0.12in -Leakproof Barrier: Featuring a tight seal, the duct non return flapper maintains kitchen hygiene by acting as a plastic backdraft damper that instantly reacts to airflow changes Vent Duct Damper -Noise Reduction: The nonreturn valve flapper operates quietly, ensuring the duct backflow flapper does not introduce additional noises into your kitchen Range Hood Vent FlapperGoods InformationDuct One Way Damper Blade Range Hood Vent Flapper provides a practical kitchen solution, functioning as a vent duct damper for consistent fume discharge.Hood Vent Flap Blade This product serves as an essential range hood accessory, stopping fume from returning through the duct system while minimizing neighbor odor transfer, perfect for apartments with shared vent shafts

• Smooth operation: the plastic backdraft damper features a quick and smooth opening and closing mechanism, ensuring optimal ventilation efficiency and less fume return,exhaust base flap,Backdraft Damper Flap
• Reliable retrofit: as a range hood duct flap, this replacement damper blade is perfect for new installations or upgrading worn range hood exhaust dampers in older homes,dryer fan backflow preventer flap,damper flap for range hood
• Quickreacting design: equipped with a check valve flap blade that responds rapidly to airflow, the damper flap for range hood ensures efficient kitchen ventilation without delays,hood pipe flap plastic,Exhaust Damper Flap
• Comprehensive fume control: the chimney fume prevention flapper stops backdraft and blocks fume from reversing, ensuring a healthy kitchen with the exhaust flapper valve installed,duct non return flapper,Non-Return Valve Flapper
• Protects kitchen surfaces: using the kitchen duct flap replacement, you prevent buildup on your kitchen walls, countertops, and cabinets, ensuring longterm cleanliness,exhaust pipe flap,Duct Backflow Damper Insert