6" Backdraft Damper Ducting Insert Backflow Preventer Draft Blocker w Clamp Lathe Tools Material: Copper

Material: Copper

Widely used in modern buildings

High-temperature rubber seal

Size: 30 x 50mm/1

6" Backdraft Damper Ducting Insert Backflow Preventer Draft Blocker w Clamp Lathe Tools Material: CopperThe backdraft damper is used to prevent the backflow of smoke or exhaust gas through air duct when the ventilation fan is off, it also prevents debris, dust and odor from entering your room. Widely used in dryers, extractors or range hoods, and other HVAC applications. You can install it in your home, kitchen, bathroom, office or living room which needs a ventilation system. Specification Color: Silver Material: 201 Stainless Steel Outer Diameter of