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  Model QC - Quad Core Diffuser  
  • Modular, exposed core supply diffuser easily configured for 1, 2, 3, or 4 way horizontal air discharge pattern to meet changing space needs
  • Exhibits excellent VAV performance maintaining a horizontal pattern for the entire operating range
  • Applicable to heating, cooling, or ventilation of spaces
  • Frames for surface mounting or use with suspended grid systems
Product Features
  • Available in steel or aluminum construction
  • “Easy-snap” cores removable without tools and positively retained by spring clips
  • Directional cores from 3" x 3" up to 12" x 12"
  • Square neck sizes available from 6" x 6" up to
    24" x 24"
  • Modular cores with close fit for enhanced appearance
  • Diffusers ship with 4 way pattern
  • Arctic White thermo-set finish
  • Custom or optional paint colors
  • Model OB1 opposed blade neck volume control damper
  • Model TBF auxiliary mounting frame for hard / plaster ceilings
  • Model SRA square-to-round neck adapters
  • Rectangular Neck Sizes

Features at a Glance

Model Features Mounting
QC-L Extensional Panel Lay-In T-Bar
QC-B Beveled Outer Frame Surface Mounted
QC-S Flat Outer Frame Surface Mounted
QC-D Extensional Panel 9/16" Narrow Slot
QC-T Extensional Panel 15/16" Tegular
QC-C   Concealed Spline
QC-L-RT Roto-Throw with
Extension Panel
Lay-In T-Bar
QC-D-RT 9/16" Narrow Slot
QC-T-RT 15/16" Tegular
QC-C-RT Concealed Spline

OBD - Opposed Blade Volume Control Damper
SRA - Square to Round Adapter
VD - Butterfly Volume Control Damper
LD - Louver Damper
TBF - T-Bar Mounting Frame
ED - Equalizing Deflector