1. This damper is suitable for regulating or shutting off the
airflow in air ducts with circular cross-sections
2. The damper is constructed with galvanized steel collar
and lightweight aluminum blades
3. Designed for vertical or horizontal mount
4. Spring-loaded for positive closure
5. One-Way directional airflow design

250x250 130
300x300 130
400x400 130

Backdraft Damper BDD-400

SKU: ADS0100