Description
+ Product Details Size – 12"w X 24"h is the size for the duct opening measurement only
+ Product Details Size – 14" x 14" is the size for the duct opening measurement only
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14"W X 30"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 15.75"W X 31.75"H] Aluminum Bar + Product Details Size – w6h6 actual front end outer MFFG410 1 + Product Details Size – 12"w X 24"h is the size for the duct opening measurement only + Product Details Size – 14" x 14" is the size for the duct opening measurement only