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Fiberglass Plenum-Backed Diffuser For T-Bar Lay-In

How to Specify

For R4.2 High Profile Plenum Back order as: Sku 452535

For R6.0 High Profile Plenum Back order as: Sku 452536

For R8.0 High Profile Plenum Back order as: Sku 20022328

Fiberglass Plenum-Backed Diffuser For T-Bar Lay-In

  • Molded fiberglass-backed diffusers with a deep plenum cavity to improve performance.
  • One-inch thick fiberglass covers entire T-Bar opening with an “R” value of 4.2, 6.0 or 8.0. Insulation absorbs sound and accepts standard spin-in tab collars supplied by others. 
  • Tested in compliance with surfaceburning characteristics (ASTM E-84) and erosion test (UL 181). Tested in accordance with ASHRAE Standard 70-1991 and ADC regulations.
  • Fiberglass plenum are available as a separate part.