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Series 3500 Dampers

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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

  • Adjustable Spring Counter Balance

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  • Bird Screen

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  • Insect Screen

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  • Chain Operator

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  • Fixed Louvre

Construction
45 degree mitered corners; riveted linkage 3300, 3400, 3500 staked corners
Finish
Mill Finish
Max Size*
36”x36”
Min. Size*
6”x6”
Blade Seals
Full length Vinyl weather strip
Blade Thickness
.020 Roll-Formed Aluminum Mill Finish
Frame Style
Front Flanged Mount
Mounting Configuration
Vertical Position A Horizontal Position B (Air Flow Up) Horizontal Position C (Air Flow Down)
Frame Material
Extruded Aluminum

Series 3500 Standard Specifications

*Call for special sizes

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