4 inch HVAC Duct Manual Volume Backdraft Damper with Adjustment Handle Viton 1/4 inch 12vdc gravity-feed capable) Operating Temperature 15-125

gravity-feed capable) Operating Temperature 15-125 °F (-10~50 °C) Media Temperature 15-180 °F (-10~80 °C) Dimensions See product diagrams Weight 16 oz Mounting Threads M4

gas & air - Direct Acting valve

Choice of Engine: YUCHAI

1 Year Warranty

4 inch HVAC Duct Manual Volume Backdraft Damper with Adjustment Handle Viton 1/4 inch 12vdc gravity-feed capable) Operating Temperature 15-1254 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