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this fan delivers up to 378 CFM of airflow while maintaining quiet and efficient operation-even under the high static pressure conditions common in larger ventilation systems
depending on speed)
The MV 122 VK external hood features an integrated removable flapper that acts as a backdraft damper
ICF-100N-4/8-300/2 Commercial Parking Garage Exhaust Fan – High-Performance Ventilation Smoke Extraction
Includes 2-speed power switch & power cord
Vents KOM 315 U 12 3/8 inch Backdraft Damper Roof fans this fan delivers up toThe Vents KOM 315 U Spring Loaded Backdraft Damper is tailor made for 12 38" round duct systems, providing reliable defence against backdrafts, as well as warding off unwanted intruders like insects and birds when your ventilation system is idle. This damper stands out for its effortless installation, thanks to its user friendly design. Crafted with a robust 24 gauge galvanized steel housing, it boasts precision engineered aluminum blades featuring a
