14"w X 10"h Aluminum Adjustable Return/Supply HVAC Air Grille 18in diameter Some of the best features

Some of the best features aren't readily apparent

+ Product Details Size – 14"w X 10"h is the size for the duct opening measurement only

Heavier gauge than needed

R Value Rating of Insulation - R3

much more than the required 700 psi for r410

14"w X 10"h Aluminum Adjustable Return/Supply HVAC Air Grille 18in diameter Some of the best features+ Product Details Size 14"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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