30"w X 10"h Aluminum Adjustable Return/Supply HVAC Air Grille Grille + Product Details Size –

+ Product Details Size – 20" x 20" is the size for the duct opening measurement only

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All steel wire is applied between PET surfaces to prevent corrosion (oxidization)

10" x 4" Floor Register HVAC Air Supply Grille - Heavy Duty Rigid Built - Plastic Never Rust Vent Duct Cover

30"w X 10"h Aluminum Adjustable Return/Supply HVAC Air Grille Grille + Product Details Size –+ Product Details Size 30"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 85" width X 11. 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