12" X 4" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 5.75"H] Compatible with Duct 8" + Product Details Size – 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
12" X 4" [Duct Opening] 1 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 5.75"H] Compatible with Duct 8" + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 22"w X 24"h is the size for the duct opening measurement only + Product Spec Sheet Aluminum Return Filter Grille Spec Sheet