Vents KOM 125 U 5 inch Backdraft Damper Single

Vents KOM 125 U Spring-Loaded Backdraft Damper - 5-Inch Duct The Vents KOM 125 U Spring-Loaded Backdraft Damper provides dependable protection against unwanted backdraft in 5-inch round duct systems. Perfect for residential and light-commercial ventilation, this backdraft damper prevents outside air, insects, and debris from entering when your fan or ERV is off. Efficient Backdraft Prevention Built with precision-balanced aluminum blades that open easily with airflow and close tightly via a spring-loaded mechanism, the KOM 125 U ensures smooth operation and an airtight seal every time. Durable, Quiet, and Easy to Install Constructed from 24-gauge galvanized steel with lightweight aluminum blades, this damper is corrosion-resistant and designed for long-term reliability. Foamed rubber seals help reduce vibration noise while improving efficiency by keeping conditioned air where it belongs. Installation is quick and simple-just insert into standard 5-inch ducting and you're good to go. What makes a Vents Backdraft damper special? Read our Blog here. Ideal Applications Perfect for use in: Bathrooms and kitchen exhaust systems Garages, workshops, and laundry rooms Cottages, apartments, and tiny homes Product Features Compatible with 5-inch round ducts Spring-loaded aluminum blades for positive closure 24-gauge galvanized-steel housing for strength Foamed rubber seals for airtight fit and noise reduction Lightweight, corrosion-resistant design Contractor & Bulk Pricing Working on a large project? We support contractors, builders, and developers across North America. Call us toll-free or email our sales team - we’ll get you great pricing for your project.