12"w X 18"h Aluminum Adjustable Return/Supply HVAC Air Grille - FULL CONTROL HORIZONTAL AIRFLOW DIRECTION Fixed Blades with Damper + Product Details Size –

+ Product Details Size – 15" Corner Baseboard Grille - White - HVAC corner vent cover

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+ Product Details Size – 12"w X 8"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 8

12"w X 18"h Aluminum Adjustable Return/Supply HVAC Air Grille - FULL CONTROL HORIZONTAL AIRFLOW DIRECTION Fixed Blades with Damper + Product Details Size –+ Product Details Size 12"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 85" width X 19. 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