Model 4-ASD  4,3,2,1 Ways Diffusion Pattern Removable Core SNAP-IN Constructed by Extruded Aluminum Available in Square and Rectangular Shape Natural Aluminum Anodized or Powder Coating Finished

Option 1-ASD 2-ASD 3-ASD 4-ASD WD

Option 1L-ARD 2L-ARD 3S-ARD 4L-ARD WD

Option 1-CSD 2-CSD 3-CSD 4-CSD -D , -F , WD

Option 1L-CRD 2L-CRD 3S-CRD 4L-CRD -D , -F , WD

Option   RD       WD