5 inch HVAC Duct Manual Volume Backdraft Damper with Adjustment Handle Normally Closed 1 Inch 220VAC-240VAC 2 choices of Seal available

2 choices of Seal available : NBR Buna-N

JQX-40F-1Z 50A SPDT Power Relay in 12VDC

Overall Length: Approx

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5 inch HVAC Duct Manual Volume Backdraft Damper with Adjustment Handle Normally Closed 1 Inch 220VAC-240VAC 2 choices of Seal available5 HVAC Duct Manual Volume Backdraft Damper with Adjustment Handle Designed for demanding applications where durability and smooth operation are paramount, Ace Crew's Heavy Duty Manual Vent Dampers provides exceptional performance in even the toughest environments. Durable Material: The body is made from 22 gauge galvanized steel material and the flap blade is made from silicone which provides a tight seal. Constructed with sturdy components to ensure