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  Model DCC - Cassette Diffuser  
  • Supply air diffuser for constant or variable volume systems
  • Cooling, heating, and general ventilation applications
  • Architecturally preferred diffuser using 3/4" vane spacing with
    an uncompromised appearance without sacrificing performance or thermal comfort
  • Core design incorporates both plaque and fixed vane diffusion elements for VAV operation down to virtually zero flow while maintaining “coanda” effect.
  • Can be used for supply or return in order to maintain uniform appearance throughout the ceiling
  • Nominal 24" x 24" diffuser installs into lay-in T-bar, 9/16" narrow slot, Armstrong Vector grid systems
Product Features
  • All steel diffuser with integral square to round flex duct adapter
  • Narrow 3/4" vane spacing preferred by Architects for appearance
  • Clean, blemish-free, removable center plague provides an “uncluttered” ceiling appearance and allows access to optional volume damper
  • 1, 2, 3, or 4 perimeter slots for a wide range of flow rates and applications
  • Neck diameters from 6" to 16" allow complete flexibility in duct sizing
  • Arctic White baked-on finish coats entire assembly
  • Aluminum diffuser with steel flex duct adapter
  • DCC-150 diffuser with 1-1/2" vane spacing, in steel or aluminum construction (1, 2, or 3 slots)
  • Optional Anemostat colors or custom color matching
  • Concealed blank-off plates (factory installed) for 1, 2, or 3-way air pattern
  • Model TBF surface frame for hard surface applications
  • Model VD butterfly volume control damper


Mounting Model / Slot Width
Lay-In T-Bar  
9/16" Narrow Slot  
Vector Grid System  
Surface Mount

VD - Butterfly Volume Control Damper
TBF - T-Bar Mounting Frame
LD - Combo Louver Damper
CED - Equalizing Deflector