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4" Deep Extruded Aluminum Backdraft Damper
Extruded aluminum backdraft damper with single-thickness blades.

Quick Specs - Non-UL Dampers

Specifier Name(s)655
Product TypesBackdraft Dampers, and Non-UL Dampers
Material OptionsAluminum, or Aluminum 6063 Alloy
Temperature Rating (°F)-40 °F to 190 °F
Blade TypeSingle Thickness Blade
Blade ActionParallel
Blade Depth


Frame Construction4" Deep
Panel Maximum Size(s)W: 48"x H: 72", For Parallel Blade Models
Pressure Drop.14 in. w.g. @ 1000 fpm
Max Static Pressure4 .in w.g. @ 1000 fpm
Maximum Velocity (FPM)1000 fpm

Detailed Specs

*For additional options/configurations see spec sheet or contact the factory.
*This info listed here is For Reference ONLY, Please Refer to the Submittal For Full Product Data

Product Submittal

Product Submittal
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