QUALITYProducts.
SINCE 1948.

Keenan and Meier manufactures & delivers high quality aluminum back draft dampers at competitive prices. Our dampers are all engineered to combine strength and durability in the use of providing controlled airflow against drafts. Our dampers are available in several styles to satisfy your engineering specifications.

Available Options

• Heavy Duty Blade .050” Extruded Aluminum Blade
• Conduit Hole Through Blade Line
• Motor Operator
• Adjustable Spring Counter Balance
• Adjustable Weighted Counter Balance
• Bird Screen
• Insect Screen
• Chain Operator
• Full-Length Hinge Seal

Series 3000 Standard Specifications

Construction	45 degree mitered corners; riveted linkage 3000-3200 screwed corners
Finish	Mill Finish
Max Single Section Size*	48″x48″
Min. Size*	6″x6″
Blade Seals	Full Length Vinyl Weather Strip
Blade Thickness	.020 Roll-Formed Aluminum Mill Finish
Frame Style	Non-Flanged Inside Mount
Mounting Configuration	Vertical Position A Horizontal Position B (Air Flow Up) Horizontal Position C (Air Flow Down)
Frame Material	Extruded Aluminum

*Call for special sizes