17"W X 10"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 18.875"W X 11.875"H] 18" Diameter For example

For example

+ Product Details Size – 22"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 34"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 34"w X 18"h is the size for the duct opening measurement only

17"W X 10"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 18.875"W X 11.875"H] 18" Diameter For example+ Product Details Size 17"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 18. 875" width X 11. 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