10 Inch Backdraft Damper5_1
HON&GUAN Backdraft Damper Available in 4, 6, 8, and 10 Inch Sizes – One-Way Ventilation Valve for Ventilation Fans
HON&GUAN 4 Inch Backdraft Damper Airflow Diagram – Valve Wings Open with Ventilation Pressure and Close Automatically with Spring for One-Way Ventilation Fan Air Control
HON&GUAN Backdraft Damper Installation Diagram – Spring Positioned Vertically for Horizontal Installations to Ensure One-Way Airflow
HON&GUAN 4 Inch Backdraft Damper Upgrade Design – Reinforced Ventilation Valve with 0.6mm Thick Galvanized Steel for Durable One-Way Airflow Contro
HON&GUAN Backdraft Damper Detail – Aluminum Axis and Carbon Steel Spring for Durable Ventilation Fan Backflow Prevention
BackDraft_Damper_4_6_Inch_Details_07

10 Inch Backdraft Damper[Upgraded], One-Way Airflow Duct Damper, Ducting Insert Backflow Preventer Duct Draft Blocker

$29.99
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