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Linear Slot Return Diffuser - Lay-In T-Bar Mount 1/2" Border - Model 6600R Series

Linear Slot Return Diffuser - Lay-In T-Bar Mount 1/2" Border - Model 6600R Series

Supply / Return Linear Slot Diffusers w/ Integral Volume / Directional Pattern Controllers
The 6600 series aluminum linear slot diffusers are an excellent choice for continuous linear applications, providing a clean appearance and easy installation.
Base models in the 6600 series vary by slot width and include: 6650(1/2" slot), 6675(3/4" slot), 6610(1" slot) and the 6615 (1-1/2" slot). A wide range of frame and border styles are available for different ceilings and installations.Return units without pattern controllers (6600R) and mitered corner models (6600MC) round out the offering.

  • Available in 1 to 8 slots with 1/2", 3/4", or 1" slot width. 1-1/2" slot width is available in 1 to 4 slots.
  • Units are available in a single section up to 8'. This feature gives a clean appearance and makes installation easier with fewer joints to line up
  • Pattern controllers on supply units are aluminum and are adjustable from the face of the diffuser and can be set to adjust volume or throw direction from vertical to horizontal
  • Available for T-bar Lay-in, surface mount, narrow tee, dropped face, concealed spline, or concealed spline/plaster frame
  • Available Universal Plenum (UP) can be provided for all 6600 Series.
  • The 6600 series is an excellent selection for variable volume systems supplying a tight horizontal pattern from maximum to minimum throws
  • The 6600R is designed for return applications. The unit is supplied without pattern controllers to reduce pressure and noise
  • 6650 - 1/2" slot width
    6675 - 3/4" slot width
    6610 - 1" slot width
    6615 - 1-1/2" slot width

    20 White / Black
    21 Clear Anodize
    28 Custom Color (color match required)

Technical specification
  • Unique ref.6600R-LSD-Lay-In-Return-1-2-Border
  • Product familyGrilles, Registers & Diffusers
  • Product groupLinear Diffusers & Grilles
  • TypeObject (single object)
  • Date of publishing2020-02-28
  • Edition number1
  • Material mainSteel
  • Material secondaryAluminum
  • Designed inUnited States
  • Manufactured inUnited States
  • BIMobject CategoryHVAC - Ductwork
  • IFC classificationAir Terminal
  • UNSPSC nameAir diffusers
  • UNSPSC code40101505
  • Uniclass 2015 CodePr_70_65_04_02
  • Uniclass 2015 DescriptionAir diffusers
  • CSI MasterFormat 2014 Code23 37 13
  • CSI MasterFormat 2014 TitleDiffusers, Registers, and Grilles
  • OmniClass Number23-33 49 11 11
  • OmniClass TitleCeiling Ventilation Diffusers
  • CSI UniFormat II CodeD30
  • CSI UniFormat II TitleHVAC

Region availability

North America
United States