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Washable MERV 6 standard
and outdoor air intake-with just one
Remote control included
especially those with high concentrations of noxious odours
multi-unit buildings
Vents KOM 125 U 5 inch Backdraft Damper Single Commercial Fans Washable MERV 6 standardVents 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
