AC Infinity Backdraft Damper 8 Inch Galvanized Steel for Ducting

This 8-inch backdraft damper is designed to prevent cold air, dust, and debris from flowing backward into your HVAC or ventilation system. Built with a galvanized steel body and spring-loaded aluminum blades, it opens smoothly with minimal airflow while ensuring reliable one-way operation. Dual outer rubber gaskets create a strong airtight seal inside ducting, allowing the damper to be mounted horizontally or vertically without tools or clamps. Ideal for range hoods, bathroom fans, dryers, grow tents, and heating or cooling ducts. Key features • Prevents reverse airflow and debris in 8-inch duct systems • Outer rubber gaskets ensure a tight, slip-resistant seal • Spring-loaded aluminum blades open with minimal airflow • Durable galvanized steel body with powder-coated finish • Installs easily in horizontal or vertical duct orientations Applications • Kitchen range hoods and ducted ventilation • Bathroom exhaust and laundry dryer ducting • HVAC heating and cooling systems • Grow room and grow tent ducting setups • Water heater draft protection and one-way airflow control Product specifications Manufacturer: AC Infinity Inc. Product Name: Backdraft Damper, 8" Product Model: AC-BDD8-B UPC Code: 819137021327 Duct Opening Size: 8 in Product Length: 7.08 in (18.0 cm) Body Material: Steel Shutter Material: Aluminum Color: Black Finish: Powder coat What’s included • Backdraft damper 8"