Linear Slot Diffusers Premium Insulated Plenum Box for Heating and

HELLA Linear Diffusers linear slot diffuser with plenum box Description ; Variants TSD15-*: 1, 2, 3 or 4 slots ; Accessories SB: Support brackets for installation of diffusers without plenum box ; Nominal linear slot diffusers Knowledge Series : Slot Diffusers Linear Slot Diffusers, commonly known as Diffuser Plenum ; Frame Style (Normal or

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