30"W X 40"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 41.875"H] w30h30 75"H – fits a 20"

75"H – fits a 20" X 8" duct opening

actual front end outer dimensions are 17

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 8" duct openings

+ Product Details Size – 10"w X 24"h is the size for the duct opening measurement only

30"W X 40"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 31.875"W X 41.875"H] w30h30 75"H – fits a 20"+ Product Details Size 30"w X 40"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 875" width X 41. 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