16"w X 6"h Aluminum Adjustable Return/Supply HVAC Air Grille Grilles this flex duct decreases the

this flex duct decreases the pressure loss and provides a more hygienic environment

actual front end outer dimensions are approximately 4

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

much more than the required 700 psi for r410

75" width X 19

16"w X 6"h Aluminum Adjustable Return/Supply HVAC Air Grille Grilles this flex duct decreases the+ Product Details Size 16"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 85" width X 7. 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