41HD

Heavy Duty Backdraft Damper, Single Thickness Blades, Galvanized Steel Construction, 3" wg Max Pressure, 3000 fpm Max Velocity, 250° F Max Temperature, Vertical Mount Horizontal Airflow or Horizontal Mount with either Vertical Up or Vertical Down Airflow

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- Heavy Duty, Single Thickness Blades, Galv, 3"wg, 3000fpm, 250�F Max