14"w X 4"h Aluminum Adjustable Return/Supply HVAC Air Grille w20h20 text-align: center

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Efficient Airflow Design: The slots are meticulously angled to diversify airflow in two directions

3 * insulation density is 30kgs/cbm = 0

+ Product Details Size – 30"w X 14"h is the size for the duct opening measurement only

4" X 14" Brass Victorian Floor Register Grille - Modern Contempo Decorative Grate - HVAC Vent Duct Cover - Brass Plated

14"w X 4"h Aluminum Adjustable Return/Supply HVAC Air Grille w20h20 text-align: center+ Product Details Size 14"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 85" width X 5. 85" height. High Quality Rigid aluminum construction with counter sunk screw holes (screws included) and no sharp edges. Installation Location Sidewall and ceiling. Design Unrestricted airflow for your HVAC system adjustable one way louver with full horizontal airflow directional control single