Shoemaker 3550 72" X 16" Backdraft Damper Vertical Mount

Product Features

• 16 Ga. Channel Frame With 26 Ga. Galvanized Blades
• Dampers Are Opened By Air Pressure Differential And Closed By Gravity
• Galvanized Finish
• Mounting Flange
• Nylon Bushings
• Out-Of-Airstream Linkage
• Isolated Blades On 10 Inch Width OR Less
• Sleeve Options
• Square Steel Pivot Pins
• 3550 - Vertical Mount
• 3560 - Horizontal Mount Air Up
• 3570 - Horizontal Mount Air Down
• 3580 - Round Sizes Available 5" To 24"
• Adjustable Counter Balance To Adjust Various Opening Pressures
• All Non-Motorized Backdraft Dampers
• Blades Are Vee Stiffened 26 Ga. For Strength And Stability
• Bronze Bearings