18" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter Its sleek contours bring a Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Its sleek contours bring a touch of modern sophistication to any room

+ Product Details Size – 36"w X 28"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 29

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 6" OR 6" x 22" duct opening (measured at the opening)

18" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 14in diameter Its sleek contours bring a Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Its sleek contours bring a touch of modern sophistication to any room + Product Details Size – 36"w X 28"h is the size for the duct opening measurement only