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  COB - Opposed Blade Damper for Round Necks  
       
 
Application
  • Opposed-blade damper for volume control used with round neck diffusers.
  • Assures precision control of air volume with a minimum of noise.
  • Installs with damper blades perpendicular to air flow.
Product Features
  • Fits into diffuser neck and is key-operated from face of diffuser.
  • Coated steel construction
  • Field installed accessory
Options
  • Aluminum construction (operator is steel)