RDD-RD Series

Air Concepts

RDD-RD Series

The very popular Round Duct (RD) frame is now available on the Round Double Deflection Grille (RDD).

It is designed to easily slide over the end of the pipe giving a clean line to spiral ductwork terminations. The RD Frame also elimiantes the need for additional mounting rings, field constructed diffuser mounting boxes or transitions saving both time and money.


General Info:

  • Double deflection design

  • Adjustable vertical and horizontal blades

  • Long air throws

  • Wide dispersion patterns

  • Exposed duct mount


  • 6",8",10",12",14",16",18",20",22",24"


  • Heavy Gauge Aluminum


  • #00 Mill

  • #42 Gloss Black Powder Coat

  • #52 White Powder Coat - Standard

  • #72 Silver Metallic Powder Coat

  • Custom Colors Available 

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