TBD3 Supply

Product Information

View Performance Data TBD3 Supply

1/2" (13) Slot Width
Non-Insulated TBD350
Insulated TBDI350
3/4" (19) Slot Width
Non-Insulated TBD375
Insulated TBDI375
1" (25) Slot Width
Non-Insulated TBD3100
Insulated TBDI3100

PRICE TBD 3 Series T-bar supply diffusers feature extruded aluminum “ice tong” pattern controllers that provide the ultimate in VAV air distribution. The smooth, aerodynamic curvature of the adjustable pattern controller produces a tight ceiling-hugging horizontal pattern, even at low flow rates. These unique pattern controllers can also be set for vertical projection. Balance dampering is also possible in both horizontal and vertical pattern settings.

For Fire-Rated applications see Series TBD3-FR.


  • Available in 1-, 2-, 3- and
    4-slot types.
  • Available in both imperial and hard metric module sizes.
  • Available standard module lengths — 24"/600mm, 30"/750mm, 36"/900mm, 48"/1200mm and 60"/1500mm.
  • Pattern controllers on the 48"/1200mm and 60"/1500mm diffusers are divided into two segments which allows for split air pattern deflection.
Available Options
  • Center notch (CN) available to bisect diffuser length (i.e. allows 48" (1200mm) unit to be installed into two 24" (600mm) ceiling modules).
  • Straddle mounting (ST).
  • Factory installed outer T-Bars.
    (TB1 / TB2).
  • Factory installed T-Bar clips
    (TC1 / TC2).
  • Aluminum plaster frame (APF).
  • Internal fiber free foam or coated fiberglass insulation.
  • External aluminum foil backed fiberglass insulation.

    Product Selection Checklist

  1. Select Inlet Diameter based on system design or duct requirements.
  2. Select Module Length based on ceiling module.
  3. Select Outlet type by model number (Slot width, insulation).
  4. Select Number of Slots.
  5. Select Integral Options if desired.
  6. Select Finish (Center T-Bar only).

Example: 8" / 48 / TBD 375 / 2 / B12


  • Shell - Coated Steel
  • Pattern Controller / Center Tee
    Extruded Aluminum



Pattern Controller - Black


Center Tee - White Powder Coat


For optional and special finishes
see color matrix.

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