30"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 7.875"H] Aluminum and durability

and durability

rotate it to align with the square frame

+ Product Details Size - 12"w X 20"h is the size for the duct opening measurement only

These are built heavy duty for installation into brick and cement walls

+ Product Details Size – 25"w X 18"h is the size for the duct opening measurement only

30"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 7.875"H] Aluminum and durability+ Product Details Size 30"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 875" width X 7. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was