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  Model FDB - Fixed Vane Plenum Slot Diffuser with Vertical Blow  
  • Fixed 1 slot diffuser with both horizontal and vertically projected air discharge directions typically applied to perimeter zones.
  • Horizontal air pattern blankets ceiling for cooling and heating loads
  • Vertical jet is directed on the wall or window
  • Draftless air distribution excellent for VAV applications
  • Integrates with inverted T-bar and 9/16" narrow slot grid systems
  • Adaptable to hard surfaces using mounting frame.
Product Features
  • Aerodynamic, curved deflection vane and standard 12" adjustable, vertical down-blow section integrated into a
    coated steel supply plenum for optimum performance
  • 24", 36", 48", 60" nominal lengths
  • Integral supply air plenum minimizes air leakage.
  • Plenum inlet located as required for ease of installation
  • Designed for 1" inverted T-bar or 9/16" narrow slot grid systems. Available for surface mounting in hard ceilings with an optional surface frame
  • Flat black finish on exposed surfaces
  • Model FSRB combines both the supply and return in one assembly
  • 1/2" Internal glass fiber insulation. External insulation, and “fiberless” insulating systems available.
  • T-Bar Clips
  • Side Tees (white)
  • Volume damper in inlet
  • Surface mounting frames
  • Custom lengths
Features at a Glance

Model Features Mounting
FDB-L Fixed Vane Plenum Slot Diffuser with Vertical Blow Lay-In T-Bar
FDB-S Fixed Vane Plenum Slot Diffuser with Vertical Blow Surface Mounted with Auxiliary Frame
FSRB-L Fixed Vane Plenum Slot Supply / Return with Vertical Blow Lay-In T-Bar