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This product series will be discontinued as of 12/31/2021.
Remaining inventory available on a first come first serve basis. See "product information sheet" below for price and availability.


RDA - Adjustable Round Ceiling Diffuser

    RDA Smoke Test

Standard Features

  • Adjustable round 3 cone ceiling diffuser
  • Air pattern adjusts from horizontal to vertical by rotating core
  • Thread adjustment design offers multiple throw configurations
  • Spring latch removable core allows for easy installation
  • First to market with 2" round collar with mounting holes for ease of installation
  • Rust resistant pre-coat with durable powder finish
  • Soft White
  • 30" and 36" standard color is glossy white and extended lead times apply.
  • View or print our product information sheet
  • Check out our RD series for a substitute on unavailable RDA sizes.

Finishes
Options (must specify when ordering)
Submittals (Technical Data/Revit)
New! Compare
Cross Reference
  • Standard Colors

  • Designer Colors

Compare Similar Products - 
Comparing Products

Face Type
Location
Surface Mount
Duct Mount
Standard Collar
Standard Damper
Optional Damper
Blade Type
Blade Spacing
Blade Deflection
Fixed or Adjustable
Frame Material
Function
Standard Finish
Optional Finish
Industry
Blade
Ceiling or Sidewall
Yes
No
N/A
None
N/A
Extruded aluminum airfoil
Varies depending on size
Double
Adjustable
Aluminum
Supply
Glossy White
Mill Finish
Commercial
Round
Ceiling or Sidewall
Yes
No
N/A
None
N/A
N/A
N/A
N/A
Adjustable
Aluminum
Supply
Clear Anodized
N/A
Commercial
Round
Sidewall
Yes
No
N/A
None
N/A
N/A
N/A
N/A
Adjustable
Aluminum
Supply
Clear Anodized
N/A
Commercial
Step Down
Duct Mount/Spiral
No
Yes
Round
None
OBR
N/A
N/A
N/A
Adjustable
Steel
Supply
Glossy White
Soft White, Driftwood Tan, Warm White, Cement Gray, Storm Gray, Bronze, Black, Aluminum Paint or Coffee Tan
Commercial
Step Down
Duct Mount/Spiral
No
Yes
Round
None
OBR
N/A
N/A
N/A
Adjustable
Steel
Supply
Soft White
Driftwood Tan, Warm White, Cement Gray, Storm Gray, Bronze, Black, Aluminum Paint, Glossy White or Coffee Tan
Commercial

Cross Reference

Competitor 
Product Series 
Shoemaker Series Notes 
AIRMATE805 
CARNESSSAA 
CARNESSSEA 
HART & COOLEY20 
KRUEGERRA2 
KRUEGERRM2 
LIMA1600 
METALAIRE3000 (Fixed Round Diffuser) 
METALAIRE3000 (Adjustable Round Diffuser) 
NAILOR6300R 
NAILORRNR 
PRICERCDA 
PRICERCD 
PRO SELECTPSRAD 
PRO SELECTPSRADW 
TITUSTMRA 
TITUSTMR 
TUTTLE & BAILEYAVJRTuttle & Bailey AVJR is made of aluminum. Shoemaker RDA is made of steel.
TUTTLE & BAILEYAP3Tuttle & Bailey AP3 is made of aluminum. Shoemaker RDA is made of steel.
TUTTLE & BAILEYP3 
TUTTLE & BAILEYAVJSTuttle & Bailey AVJS is made of aluminum. Shoemaker RDA is made of steel.
US AIRE3100SUS Aire 3100S called out as 2 cone and is fixed. Shoemaker RDA called out as 3 cone and is adjustable. Both models have the same number of cones.
US AIRE3100S-1AUS Aire 3100S called out as 2 cone. Shoemaker RDA called out as 3 cone. Both models have the same number of cones.