885AL | Wall Cap with Backdraft Damper 6-1/2 x 6-1/2 x 4 Inch Aluminum for 3 or 4 Inch Round Ducts Range Hood & Bath Ventilation Fan | Broan Fans SubCategory 3_Marine Hitch Pins Durable Construction: Built from robust

Durable Construction: Built from robust steel

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885AL | Wall Cap with Backdraft Damper 6-1/2 x 6-1/2 x 4 Inch Aluminum for 3 or 4 Inch Round Ducts Range Hood & Bath Ventilation Fan | Broan Fans SubCategory 3_Marine Hitch Pins Durable Construction: Built from robust**Broan Wall Cap with Backdraft Damper 885AL: A Ventilation Essential** Maximize the performance of your Broan ventilation system with our Wall Cap with Backdraft Damper (SKU: 885AL). Designed for use with 3" or 4" round ducts, this component ensures optimal air and sound control. **Key Features and Benefits:** Built in bird screen prevents debris ingress Integral damper minimizes drafts and backflow Durable 0. 025" aluminum construction ensures