Fantech's new Contour Grilles have been scientifically designed to work as either Supply or Exhaust Grilles. Well developed Coanda effect disperses air along the ceiling thus eliminating cold drafts. These grilles also work well in heated applications.
Grilles are manufactured of flame retardant, polypropylene that resist yellowing. White matte finish can be painted to match walls or ceiling.
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Comments about CG Series Adjustable Plastic Supply/Exhaust Contour Grille w/ Metal Mounting Collar for 5" Duct:
I ordered both the 4" and the 5" model. the 4" fits in the 4" duct nicely. The 5" on the other hand is the exact same grille with larger internal spring clips to fit in the 5" duct. the part that fits in the duct is only 3-1/2". it will cut down your flow dramaticaly