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 Temperature_60 to 320DEG F it maintains structural integrity under

it maintains structural integrity under extreme temperatures and harsh conditions

With its compact size and convenient button design

meticulously engineered to provide a firm grip and effortless operation

This knob lock pin is commonly used in industrial and manufacturing settings for various applications such as positioning workpieces

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 Temperature_60 to 320DEG F it maintains structural integrity under**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