4 In. Galvanized Back-Draft Damper with Rubber Seal

6 Inch Draft Blocker Backdraft Damper Duct Vent Preventer for Airflow Control

4 In. Galvanized Back-Draft Damper with Rubber Seal

4" BACK DRAFT DAMPER

Backdraft Damper with Spring-Loaded Folding Blades Ducting in Range Hoods, Fans

6 In. Galvanized Back-Draft Damper with Rubber Seal Free Shipping (NEW)

4 In. Galvanized Back-Draft Damper with Rubber Seal