Flue Damper Range Hood Ventilation Check Valve Pipe Check Valve Air Duct Check Pipe Draft Blocker

Label:Yes Size: 80mm/ 100mm/110mm/ 125mm/ 150mm Application: Bathroom ventilation fan 100% Brand new & High quality Material: PVC Role: Preventing reverse irrigation, preventing mosquitoes

packing include: 1pcs X Air duct check value

Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!