12"w X 8"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 9.75"H] w34h34 our Circular Air Supply Valves 4 X 12 Is CRFG2028 Width_14in
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12"w X 8"h [Duct Opening] 3 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 9.75"H] w34h34 our Circular Air Supply Valves 4 X 12 Is CRFG2028 Width_14in our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems Weather and Pest Proof – These louvers are especially designed to prevent water from entering your home