20"w X 10"h Aluminum Adjustable Return/Supply HVAC Air Grille Powder-Coat Exceptional Craftsmanship: Hand-inspected for quality

Exceptional Craftsmanship: Hand-inspected for quality

R value rating of insulation - r3

and centralized air ducted units

ventilation

Example: If your hole is 20" wide by 14" tall

20"w X 10"h Aluminum Adjustable Return/Supply HVAC Air Grille Powder-Coat Exceptional Craftsmanship: Hand-inspected for quality+ Product Details Size 20"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 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