18" X 30" Or 30" X 18" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 19.75 X 31.75] Material_Copper Available in 1" standard dimension CRFG2028 Width_14in 4 X 12 Is

Available in 1" standard dimension increments

please note that the total outer dimensions of the grille measure 12" in diameter

+ Product Details Size – 30"w X 8"h is the size for the duct opening measurement only

Ensure that all joints are sealed to prevent leaks

actual front end outer dimensions are approximately 18 5/8" width X 32 5/8" height

18" X 30" Or 30" X 18" Heavy Duty Floor Grille Fixed Blades Air Grille Brown [Outer Dimensions: 19.75 X 31.75] Material_Copper Available in 1" standard dimension CRFG2028 Width_14in 4 X 12 Is Available in 1" standard dimension increments please note that the total outer dimensions of the grille measure 12" in diameter