We are pleased to announce two new damper models CD450 and CD450V. These extruded aluminum models feature airfoil blades with mechanically fastened blade seals for low pressure drop when open, and achieve Class 1A leakage (3cfm/ft2 @ 1" w.g.) performance when closed. CD450 has a horizontal blade orientation and CD450V is vertical blade orientation. Both models use a 4" wide frame design with finger-style jamb seals for a "light-tight" sealing effect.


  • Acetyl copolymer blade end caps that provide enhanced sealing against finger-style jamb seals
  • Telescoping shaft allowing up to 8" extension for offset actuator mounting
  • Coupler option which allows 2 damper sections to be joined and operated by a single actuator on outside of frame to provide a narrow profile when space is limited
  • Industry leading 5-year product warranty

For more information on the CD450 & CD450V dampers: