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20 — Steel Round Ceiling Diffuser

How to Specify

Provide the following information:

  • Model number
  • Diameter
  • Finish

 

20 — Steel Round Ceiling Diffuser

Assets/Details

Submittal Data (67 KB, PDF)
Engineering Data (212 KB, PDF)
  • Steel construction
  • For ceiling or exposed duct installation
  • Five-step positioning of air pattern adjustment
  • 360-degree pattern, horizontal to vertical pattern change
  • Removable center core
  • Diffuser outer shell fastens directly to duct, margins fit tight to ceiling for optimum ceiling appearance
  • Optional #19 damper; duct-mount only
  • Bright White finish.


20 — Steel Round Ceiling Diffuser - dimensional drawing

Available sizes (inches)

Listed SizeABC Pos. 1C Pos. 2
66 1/211 1/81 1/81 3/4
88 1/214 3/41 1/22 1/8
1010 1/218 1/42 1/82 7/8
1212 1/2222 3/83 1/8
1414 1/2262 5/83 3/8
1616 1/2293 1/44
1818 1/233 1/23 7/84 3/4