4" Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Duct Insert Backflow Prevention Inline Fan Vent Deflector Silver

Description

🚫💨 Stop drafts like a pro—upgrade your airflow game!

The 4" Draft Blocker Backdraft Damper is a robust ventilation accessory crafted from galvanized steel and aluminum. Designed for easy push-in installation, it prevents backflow and air recirculation in ducts, enhancing HVAC efficiency. Ideal for residential, commercial, and industrial use, it fits standard 4" ventilation pipes and supports a wide range of applications including AC units, exhaust fans, and heating ducts.