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MCD — Aluminum Adjustable Modular Core Diffuser, Flat Margin, with OBD option

How to Specify

Use the engineering data files to determine the proper size to use for maximum performance. Refer to the submittal drawing for key product dimensions.

How to Purchase

FAQs for GRDs

MCD — Aluminum Adjustable Modular Core Diffuser, Flat Margin, with OBD option

Assets/Details

Submittal Data (120 KB, PDF)
Engineering Data (217 KB, PDF)
  • New size available: 24x24
  • Models MCDD / MCDSD / MCDSDT are no longer available
    • Damper must be ordered separately and field attached
    • MCDD / MCDSD change will be implemented ahead of remaining changes
      • MCDST - 6x6, 8x8, 10x10, 12x12 in T-bar Layins are made in Juarez
      • ALL MCD, MCDS, and MCDST 14x14 and larger are made in Ponca City
  • Extruded aluminum construction
  • Four modular cores provide variable pattern adjustments of four-way, three-way, two-way, or one-way horizontal air patterns
  • Flat (extended) margin
  • Fixed fins
  • Bright White finish
  • Available sizes (inches): 6x6, 8x8, 10x10, 12x12, 14x14, 16x16, 18x 18, 20x20, 22x22

MCD - Aluminum Adjustable Modular Core Diffuser, Flat Margin, with OBD option - dimensional drawing

  1. Obsolete Product

HC_MCD













  • Extruded aluminum construction
  • Four modular cores provide variable pattern adjustments of four-way, three-way, two-way, or one-way horizontal air patterns
  • Flat (extended) margin
  • Fixed fins
  • Bright White finish
  • Available sizes (inches): 6x6, 8x8, 10x10, 12x12, 14x14, 16x16, 18x 18, 20x20, 22x22