639, Wall Cap, 3¼" x 10" Duct, Steel, Black
639, Wall Cap, 3¼" x 10" Duct, Steel, Black is backordered and will ship as soon as it is back in stock.
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639, Wall Cap, 3¼" x 10" Duct, Steel, Black
Description
Description
This exterior wall cap is designed for rectangular duct ventilation, providing effective airflow management with pest protection and backdraft prevention in a compact steel housing.
KEY FEATURES
• Model: 639
• Product Type: Wall Cap
• Material: Steel
• Finish: Black enamel (electrically bonded epoxy)
• Duct Size Compatibility: 3¼" x 10" rectangular duct
• Backdraft Damper: Spring‑loaded back‑draft damper
• Bird Screen: Built‑in bird screen
• Overall Width: 12.75 in
• Overall Height: 5.625 in
• Duct Collar Protrusion: 4.875 in
• Gauge: 24‑gauge CRCQ steel
• Use Restriction: Not for dryer venting
This wall cap combines durable steel construction with a built‑in damper and screen to ensure reliable ventilation while preventing pests and backflow, making it suitable for range hood or bath fan applications.
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