10"w X 8"h [Duct Opening] 2-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 9.75"H] 20 Feet Long + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
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Description
10"w X 8"h [Duct Opening] 2 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 9.75"H] 20 Feet Long + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 12"w X 14"h X 2"d (for duct opening measurement only) + Product Details Perfect Fit & Easy Sizing Designed for a 8" x 30" or 30" x 8" duct opening (measured at the opening)