36"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 37.875"W X 21.875"H] 14in diameter Achieve the perfect airflow with

Achieve the perfect airflow with adjustable control by rotating the middle disk

+ Product Details Size - 32"w X 28"h X 2"d (for duct opening measurement only)

& EN 13180 standards

+ Product Details Size - 28"w X 36"h X 2"d (for duct opening measurement only)

36"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 37.875"W X 21.875"H] 14in diameter Achieve the perfect airflow with+ Product Details Size 36"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 37. 875" width X 21. 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