Cold air Returns
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metal examples
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Opera grilles
opera grille overview
pictures of various sizes
10 by 2 duct opening
10 by 2 back view closeup
8 by 4 duct opening
10 by 4 duct opening
10 by 4 closeup
12 by 4 duct opening
8 by 8 duct
14 by 8 duct size
10 by 10 duct opening
14 by 10 duct
14 by 10 duct closeup #1
14 by 10 duct closeup #2
round opera grilles
6 inch diameter duct
6 inch diameter duct back view
8 inch diameter duct
8 inch diameter back view
installed picture
with black paint
back view
outside dimensions
dampers
damper operation
damper detail
looking through damper
Wow! Opera grilles create a classy look!!
