6" Backdraft Damper Ducting Insert Backflow Preventer Draft Blocker w Clamp Bright Orange * Holder accepts universal 1/4

* Holder accepts universal 1/4 in

Rotatable and foldable design

The silicone insulation resists melting in hot environments and becoming brittle in cold ones

Mounting Diameter:86mm

the load of the product is Max 5Kg

6" Backdraft Damper Ducting Insert Backflow Preventer Draft Blocker w Clamp Bright Orange * Holder accepts universal 1/4The 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